@Ohifriend I noticed starting last night that after I mark an episode as watched it doesn’t permanently change the color of the button / dot on the calendar. The animation turns it solid purple but then it switches back to unfilled. It correctly shows up in my history though and displays the next episode in the “up next” tab.
Potentially a weird cache issue, may or may not be specific to your account. Is this for only this show, or others also?
Yep this is for all shows. The issue just started today around 2am and I wonder if it has something to due with an api update maybe? I tried marking an episode as watched from the web version (old and new design) and both had the same issue. Correctly shows up in history but doesn’t fill the color on the app. I tried clearing the cache and it hasn’t fixed it sadly.
Actually I just found this post of people who have the same issue. It seems like it’s not just an iOS 18 app version problem. This is exactly what happens for me too where the animation shows it correctly but then the visual change doesn’t persist.
No, more users have. This problem since Monday morning.
More likely a trakt bugg.
I Through first it was due tmdb integration, but have noticed it more than just A knight in the making.
It’s on every show, seams like movies work.
I’m having the same issue. I’ve just watched an episode and it’s in my history as watched but it’s not marked with the two ticks 
and I’m not able to rate the episode.
Obs: tested on android app (v3 beta) and web mobile v3. If I switch to V2 It’s normal though
Help please I noticed since this morning none of my tv shows are getting mark as watched but still being in my history and when I press watch it goes back to unwatch in couple hours. What going on?
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https://trakt.tv/settings/advanced
Did you try reset (progress) data already?
Helps to fix weird caching errors.
I’m not sure what was going on but I believe it might’ve resolved itself, according to @Steffe73?
Yep it fixed itself for me too! 
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