LociOiling Lv 1
On "old devprev", I wasn't able to download a solution file, let alone open it. The solution was created on the current devprev.
Updating to V30-20240129-4706116206-win_x64-devprev solved the issue.
I'm guessing the problem has something to do with one-way bands, probably there are new fields that need the updated client.
This would also imply that main wouldn't be able to open anything shared on devprev.
If so, not really a bug, but worth a mention here in case it's unexpected.
