Why is one camera pink shaded?
https://VIDEO_URL?video_id=0d55fd353e451b3999a3673eb356022bwUM
Seems to be night vision. Apparently toggling it off and on a few times can fix it.
Valentines filter
Strange
Try Eufy support, it is a known fault on some of the early S4s
toggle night vision off and on
It’s an issue with camera sometimes. You can get it replaced in warranty.
Normally in the day time there is an infrared filter which moves out of the way at night to improve vision. If the filter fails to move back in the daytime when it reverts back to colour then the camera sees the infrared and it messes up the colour.
Complete a backups and reset that thing.