Well, I have to walk this back. CVMServer crashed today after coming out of Preview having opened a .png file. Here's the Mac Analytics Data from the Console:
com.apple.message.domain: com.apple.graphics.clients
com.apple.message.__source__: SPI
com.apple.message.architecture: 64
com.apple.message.context_type: Metal
com.apple.message.signature2: 1018.2
com.apple.message.signature3: Metal
com.apple.message.signature1: com.apple.Preview
com.apple.message.intermediate_frameworks: IOGPU,AGXMetal13_3,AppleMetalOpenGLRenderer,GLEngine,OpenGL,QuartzCore,AppKit,CoreFoundation,HIToolbox,Direct
com.apple.message.summarize: YES
SenderMachUUID: 0A8C3464-83D9-3F20-A92C-E09B34B96326
That occurred at 12:08.40. Right after, at 12:08:41 this occurred:
com.apple.message.domain: com.apple.assumes.failure
com.apple.message.signature: BD0DFD42-0DC3-3F3D-9C04-5A2B3D93794D:98580
com.apple.message.signature2: 0x89
com.apple.message.signature3: libxpc.dylib
com.apple.message.summarize: YES
SenderMachUUID: 5A9E7CA3-2403-3C37-9CD4-B86DA8D426D2
Then this at 12:44
com.apple.message.domain: com.apple.crashreporter.writereport.crash
com.apple.message.signature: CVMServer
com.apple.message.signature2: UNBUNDLED ||| ??? (177.22)
com.apple.message.signature3: UNKNOWN
com.apple.message.result: NO
com.apple.message.summarize: YES
SenderMachUUID: BD62D5D9-F283-3385-8CD1-4070ECDEDDC4
It would seem to me that the bug is related to graphics/png's as I believe that the screensaver is using png's as well.