Yeah, I've had that happen before in both eufycam2s and eufy indoorcams with different firmware versions. They'd fix it, and then it would come back again in another firmware. Only happens in certain environments.
I actually haven't updated my eufycam2 firmware past 2.1.3.3h because it has been very stable for me, but 2.1.44h is pretty new. Does your eufy app show a firmware update yesterday?
IIRC, turning off night vision and turning it back on has helped reset this kind of thing before. If using both HKSV and eufy app, do it in both places together to be sure.