I have a screen recording if it helps, and I'm willing to bet it's related to the 3rd step which auto switches to the next game.
Exiting Analysis Board from Daily Game Switches to Different Active Game
Sort:
Nov 22, 2024
0
#4
they fixed the horrible "new" game review design
for the old perfect one !
Maybe this will solve your problem with the new update 
The game analysis board would greatly benefit to use the design o the game review,
it would format the variant lines so perfectly : imagine an accordion line choice with the old "g.o.a.t." game review design. But alas i am not paid by chess.dot com to solve the problem sof the review page redesign i paid worthlessly from october 18 through nov 22 since this was the kind of horrible game revie page they imposesd on us all this time so i had to walk away i couldn't acept this.
(take the old and add lines like a website menu and you get the perfect one! nothing would compare)!
Make the chess board TiNY. we know how it look swe can see a tiny board perfectly in the top 15% top right or left. Like on the daily game preview miniatures ! THAT is the perfect size of the chessboard on the game review screen... NOT 85% ! get real 
think it through
Martin_Stahl wrote:
Is this happening on the app?
Yes
latest on play store, beta
definitely some exit hook on analysis board forgetting the last board and like I said I think it's related to the auto-switch to next board (since it doesn't seem to happen on the 1st board) from one daily to the next
Forgot I was in beta on the android version and not just via the site; sorry about that.
Edit: Ah I did mention that in the 1st post, but wasn't adamant about it. Compressing and uploading video now.
Steps to reproduce:
1) Have multiple daily games.
2) Make move in one and submit
3) It should auto-switch to next active daily game upon submission (default behavior)
4) Enter analysis board, make some moves, hit back button
And it is not the game you were just analyzing.
Not sure if it's due to being in beta but there have been many similar glitches within the last 2-4 weeks cropping up. Hope there aren't any discount new hires with ability to get into a release without proper QA but it sure feels like it.