Came to this channel looking for other people having this issue, as I’m also experiencing the same symptoms. Individual channels load correctly as described in the post, but I only get the initial load of posts in subscribed when I open the app, and trying to switch to all results in a timeout.
Edit: clearing the cache did not resolve the issue, nor did logging out and logging back in.
Came back here to share that, for me, as of today, I’m no longer experiencing this issue. I’m able to scroll down my feed and have it load new posts, and I can once again access the ‘all’ feed. Unsure if the app updated automatically. I’ve done absolutely nothing to resolve the issue and made no changes to my account. No Android updates between my last post and now. Maybe it was a backend issue with the instance I’m on (feddit.nl)?
At any rate, wanted to share. Hopefully yours clears up similarly.