Cloud Gaming - Save not carrying over in some games but not others ?

Hey there !

So few months ago I tried the Game Pass (I play on PC and don't own an Xbox) and kept the subscription going considering the great choice and quality of games available.

I upgraded it to Ultimate and tried my luck with the cloud gaming on Androir this morning, but I'm left puzzled.

For some titles, my save file carries over just fine from PC (e.g. Enter the Gungeon, I literally resumed, on mobile, where I left my last run on PC), and for some it doesn't (Dead Cells and Monster Sanctuary for the few I've tried) and I need to start over. Doesn't seem like my achievements carry over either, for those two.

Game page of each of those games says it's available on all 3 platforms (xbox, cloud, pc), so I don't get why some work and some not ? Different version ? Bug ? Can't find my save file ? Is there some workaround available ?