Do multiple people use the cameras?
Poor indoor lighting can cause focus to "hunt". In addition, certain colors can also affect focus. Not sure what you are filiming or the conditions?
Factory reset one of the camcorders and see if it continues to behave the same.
~Rick
Bay Area - CA
~R5 C (1.0.6.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It
