On Memmy, go to Profile - > Settings (top right of screen) -> Content. There should be an option to hide NSFW, turn that on.

I thought I’d lost mine too, and when I checked the community I wasn’t subbed. I could still view my profile, comments and posts though.

I cleared the cache, then tried to post here and it said I was logged out (even though I could see all my activity except subs). I couldn’t see any way to logout, so I edited my profile and re-entered my password then hit save. That seems to have fixed it, now I can post and my subs are back.