I have the same problem Claudio,

In the search bar it would not search any group I tried to search for

I updated (after needing to update zap store)

and still had the same issue.

I went to the desktop to login (to chachi), then join the group, now I'm in. But, in the video shown below👇, it still says in 0xchat I'm not in the group, but it is shown above that I joined earlier. 🤷‍♂️ seems like a 0xchat issue but idk

https://video.nostr.build/5a933e1293107dab3f32087f7796aa009cfc5d8f928f256cdad27aa687e9f9ec.mp4