Greetings,
The best place to start is usually this.
-Reset the camera's main and custom settings to default, use a new or known good battery, fully charged, use a new freshly formatted (in camera) SD card. Are you using any 3rd party accessories? Lens, adapter, flash, grip, etc. If so remove.
Now test again. If the behavior continues, your camera should be sent to Canon of inspection.
~Rick
Bay Area - CA
~R5 C (1.0.9.1), ~R50v (1.1.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, ~RF 200-800 +RF 1.4x TC, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve Studio ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8 ~CarePaks Are Worth It
