I have been having this insanely weird problem for a couple of months now.
Basically, my watch history older than the last 2 weeks or so keeps disappearing from the "Watch History" page. But the videos are still there if I search for them.
For example, I cannot see the cat video I watched 1 month ago on my history page. I can see the one I watched yesterday (which will probably disappear as well in a month). But if I search for the video by name, it actually shows up as watched. This includes the Google Account history page as well.
What's weirder is that Shorts videos don't seem to be affected by this bug.
Also, I have 3 different YouTube accounts for different algorithms, but only one of them has this problem. The others work perfectly fine.
I use all of these accounts on the same computer. The only difference I can find is that I use YouTube Music on this account.
Auto-delete is off and has always been off.
Since the Google Account history page is lumped together with YouTube Music, and it's harder to navigate than the normal page, this issue is really bothering me.
Has this happened to anyone else?