I'm getting the following console logs in my failed attempts at using the share button within safari (and in Maps as another example):
default 17:54:50.023506 -0600 pkd allowing host 381 /Applications/Safari.app/Contents/MacOS/Safari to use plug-in com.apple.messages.ShareExtension(<private>) uuid=A1E8975B-0910-42AC-8205-BF000CD75C1B at /Applications/Messages.app/Contents/PlugIns/Messages Share Extension.appex
default 17:54:50.094197 -0600 Messages Share Extension subsystem: com.apple.siri, category: Intents, enable_level: 1, persist_level: 1, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
default 17:54:50.123155 -0600 Messages Share Extension subsystem: com.apple.SkyLight, category: default, enable_level: 0, persist_level: 0, default_ttl: 7, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
default 17:54:50.160039 -0600 Messages Share Extension subsystem: com.apple.clouddocs, category: default, enable_level: 0, persist_level: 0, default_ttl: 14, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
default 17:54:50.216799 -0600 Messages Share Extension in _willPerformHostCallback: block
default 17:54:50.359716 -0600 Messages Share Extension Adding listener ID: <private> for service: com.apple.madrid
default 17:54:50.359771 -0600 Messages Share Extension addListener:forService:
default 17:54:50.359862 -0600 Messages Share Extension <private> -> <private>
default 17:54:50.359977 -0600 Messages Share Extension Final map after add <private>
default 17:54:50.360017 -0600 Messages Share Extension Adding listener ID: <private> for service: com.apple.ess
default 17:54:50.360048 -0600 Messages Share Extension addListener:forService:
default 17:54:50.360090 -0600 Messages Share Extension <private> -> <private>
default 17:54:50.360139 -0600 Messages Share Extension Final map after add <private>
default 17:54:50.360173 -0600 Messages Share Extension Adding listener ID: <private> for service: com.apple.private.ac
default 17:54:50.360206 -0600 Messages Share Extension addListener:forService:
default 17:54:50.360259 -0600 Messages Share Extension <private> -> <private>
default 17:54:50.360316 -0600 Messages Share Extension Final map after add <private>
default 17:54:50.360355 -0600 Messages Share Extension Adding listener ID: <private> for service: com.apple.private.alloy.screensharing
default 17:54:50.360386 -0600 Messages Share Extension addListener:forService:
default 17:54:50.360446 -0600 Messages Share Extension <private> -> <private>
default 17:54:50.360506 -0600 Messages Share Extension Final map after add <private>
default 17:54:50.555178 -0600 Messages Share Extension subsystem: com.apple.libsqlite3, category: logging, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
default 17:54:50.609330 -0600 Messages Share Extension subsystem: com.apple.calendar, category: calendar, enable_level: 1, persist_level: 1, default_ttl: 7, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
default 17:54:50.614841 -0600 Messages Share Extension subsystem: com.apple.coredata, category: error, enable_level: 0, persist_level: 0, default_ttl: 14, info_ttl: 1, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
error 17:54:50.614914 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'uniqueId' for entity ABCDInfo while resolving selector 'uniqueId' on class 'ABCDInfo'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:50.706997 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'uniqueId' for entity ABCDContact while resolving selector 'uniqueId' on class 'ABCDContact'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
default 17:54:50.765158 -0600 Messages Share Extension -awakeFromLoad
default 17:54:50.765437 -0600 Messages Share Extension -setServername: <private> Parsed into scheme: https host: <private> port: 0 path: <private>
default 17:54:50.765607 -0600 Messages Share Extension -initWithUID: called on thread: <Main>
default 17:54:50.766042 -0600 Messages Share Extension -clearPrincipalProperties
default 17:54:50.766098 -0600 Messages Share Extension -clearHomeContainers
default 17:54:50.812634 -0600 Messages Share Extension -awakeFromLoad
default 17:54:50.812772 -0600 Messages Share Extension -setServername: <private> Parsed into scheme: https host: <private> port: 0 path: <private>
default 17:54:50.812865 -0600 Messages Share Extension -initWithUID: called on thread: <Main>
default 17:54:50.812994 -0600 Messages Share Extension -clearPrincipalProperties
default 17:54:50.813036 -0600 Messages Share Extension -clearHomeContainers
default 17:54:50.820262 -0600 Messages Share Extension -awakeFromLoad
default 17:54:50.820453 -0600 Messages Share Extension -setServername: <private> Parsed into scheme: https host: <private> port: 0 path: <private>
default 17:54:50.820581 -0600 Messages Share Extension -initWithUID: called on thread: <Main>
default 17:54:50.820708 -0600 Messages Share Extension -clearPrincipalProperties
default 17:54:50.820747 -0600 Messages Share Extension -clearHomeContainers
default 17:54:50.826119 -0600 Messages Share Extension -awakeFromLoad
default 17:54:50.826273 -0600 Messages Share Extension -setServername: <private> Parsed into scheme: https host: <private> port: 0 path: <private>
default 17:54:50.826496 -0600 Messages Share Extension -initWithUID: called on thread: <Main>
default 17:54:50.826615 -0600 Messages Share Extension -clearPrincipalProperties
default 17:54:50.826656 -0600 Messages Share Extension -clearHomeContainers
default 17:54:50.879141 -0600 Messages Share Extension -awakeFromLoad
default 17:54:50.879279 -0600 Messages Share Extension -setServername: <private> Parsed into scheme: https host: <private> port: 0 path: <private>
default 17:54:50.879368 -0600 Messages Share Extension -initWithUID: called on thread: <Main>
default 17:54:50.879460 -0600 Messages Share Extension -clearPrincipalProperties
default 17:54:50.879498 -0600 Messages Share Extension -clearHomeContainers
default 17:54:50.927907 -0600 Messages Share Extension -awakeFromLoad
default 17:54:50.928046 -0600 Messages Share Extension -setServername: <private> Parsed into scheme: https host: <private> port: 0 path: <private>
default 17:54:50.928134 -0600 Messages Share Extension -initWithUID: called on thread: <Main>
default 17:54:50.928227 -0600 Messages Share Extension -clearPrincipalProperties
default 17:54:50.928265 -0600 Messages Share Extension -clearHomeContainers
default 17:54:50.980834 -0600 Messages Share Extension IORegistry entry 'IODeviceTree:/efi/platform' does not contain the key 'apple-coprocessor-version'
error 17:54:50.992736 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'title' for entity ABCDContact while resolving selector 'title' on class 'ABCDContact'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:50.992807 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'suffix' for entity ABCDContact while resolving selector 'suffix' on class 'ABCDContact'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:50.992879 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'firstName' for entity ABCDContact while resolving selector 'firstName' on class 'ABCDContact'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:50.992948 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'middleName' for entity ABCDContact while resolving selector 'middleName' on class 'ABCDContact'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:50.993012 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'lastName' for entity ABCDContact while resolving selector 'lastName' on class 'ABCDContact'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.264937 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'uniqueId' for entity ABCDPhoneNumber while resolving selector 'uniqueId' on class 'ABCDPhoneNumber'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.265045 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'fullNumber' for entity ABCDPhoneNumber while resolving selector 'fullNumber' on class 'ABCDPhoneNumber'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.265098 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'label' for entity ABCDPhoneNumber while resolving selector 'label' on class 'ABCDPhoneNumber'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.265144 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'isPrimary' for entity ABCDPhoneNumber while resolving selector 'isPrimary' on class 'ABCDPhoneNumber'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.269117 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'uniqueId' for entity ABCDEmailAddress while resolving selector 'uniqueId' on class 'ABCDEmailAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.269265 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'orderingIndex' for entity ABCDEmailAddress while resolving selector 'orderingIndex' on class 'ABCDEmailAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.269361 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'address' for entity ABCDEmailAddress while resolving selector 'address' on class 'ABCDEmailAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.269464 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'label' for entity ABCDEmailAddress while resolving selector 'label' on class 'ABCDEmailAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.269580 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'isPrimary' for entity ABCDEmailAddress while resolving selector 'isPrimary' on class 'ABCDEmailAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:51.269810 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'orderingIndex' for entity ABCDPhoneNumber while resolving selector 'orderingIndex' on class 'ABCDPhoneNumber'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
default 17:54:51.412630 -0600 kernel process 1922 (Messages Share Extension) exceeded physical memory footprint, the ActiveSoftMemoryLimit of 50 MB
default 17:54:51.412644 -0600 kernel process Messages Share E[1922] crossed memory high watermark (50 MB); sending EXC_RESOURCE.
default 17:54:51.419570 -0600 kernel AMFI: allowing exception handler for 'Messages Share E' (1922) because the handler was set by master-entitled process 'launchd' (1).
error 17:54:52.924755 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'uniqueId' for entity ABCDMessagingAddress while resolving selector 'uniqueId' on class 'ABCDMessagingAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:52.926139 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'label' for entity ABCDMessagingAddress while resolving selector 'label' on class 'ABCDMessagingAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:52.926206 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'isPrimary' for entity ABCDMessagingAddress while resolving selector 'isPrimary' on class 'ABCDMessagingAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:52.930475 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'orderingIndex' for entity ABCDMessagingAddress while resolving selector 'orderingIndex' on class 'ABCDMessagingAddress'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:53.611478 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'serialNumber' for entity ABCDAddressBookSource while resolving selector 'serialNumber' on class 'ABCDAddressBookSource'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
error 17:54:53.713149 -0600 Messages Share Extension warning: dynamic accessors failed to find @property implementation for 'uniqueId' for entity ABCDAddressBookSource while resolving selector 'uniqueId' on class 'ABCDAddressBookSource'. Did you remember to declare it @dynamic or @synthesized in the @implementation ?
default 17:54:54.053638 -0600 Messages Share Extension Client requesting to warmup the query cache for service: com.apple.madrid
default 17:54:54.053743 -0600 Messages Share Extension _warmupQueryCacheForService: (service: com.apple.madrid)
default 17:54:54.053819 -0600 Messages Share Extension Cache request for service com.apple.madrid
default 17:54:54.054113 -0600 Messages Share Extension transactionID map after ADD <private>
default 17:54:54.054210 -0600 Messages Share Extension Sending cache request for service com.apple.madrid transactionID <private>
default 17:54:54.055652 -0600 Messages Share Extension Client requesting to warmup the query cache for service: com.apple.ess
default 17:54:54.055823 -0600 Messages Share Extension _warmupQueryCacheForService: (service: com.apple.ess)
default 17:54:54.056365 -0600 Messages Share Extension Cache request for service com.apple.ess
default 17:54:54.057030 -0600 Messages Share Extension transactionID map after ADD <private>
default 17:54:54.057218 -0600 Messages Share Extension Sending cache request for service com.apple.ess transactionID <private>
default 17:54:57.760776 -0600 Messages Share Extension Client requesting to flush the query cache for service: com.apple.madrid
default 17:54:57.761401 -0600 Messages Share Extension _flushQueryCacheForService: (service: com.apple.madrid)
default 17:54:57.761465 -0600 Messages Share Extension Client requesting to flush the query cache for service: com.apple.ess
default 17:54:57.761513 -0600 Messages Share Extension _flushQueryCacheForService: (service: com.apple.ess)