If the interface allows to see server versions, perhaps can you check if there are still 12.2 servers while you play on linux or Windows. In this case, it could be a bug. Or maybe is it only listing servers hosted on same OS?
EDIT: After installing OpenTTD on my Haiku VM, servers of different versions (including 12.1 & 12.2) are listed but all are marked with a red dot.
I would love to see Space Girl working on Haiku.
Yes, sorry for the confusion. I mean, servers are listed. The red dot means they are unavailable. It’s not uncommon for servers to go offline, but all of them at the same time?
One of the possible causes for servers to appear listed with a red dot is version mismatch. That’s why I thought it had something to do with an outdated OpenTTD version.
It happened in Windows and Linux before that I found out that the reason was my creation being outdated, but they’re are always servers with outdated versions available. Now they are all unavailable.
Well, I’ll try again and see if it gets solved.