I wonder if this is related to the problem I have with Siri being
activated by Bluetooth devices. I realized the other day that since
upgrading the iOS on my iPhone SE to 13.xx I have a problem remotely
activating Siri. I have an after market audio system in my vehicle and
it has a button to activate a phone's voice assistant. Prior to 13.xx
it would work flawlessly to initiate Siri through the vehicle's audio
system. But now, it often fails. When it does fail the only solution I
have found is to reboot the phone. I have a similar issue with my
Aftershokz Bluetooth headset.