I can't upload anything from here, work pc. But the server my clan hosts is having issues with the latest dev update. you can join the server, select your position but you get stuck on the stratis load screen. The only way we have overcome this is by getting everyone in the lobby at once and having the admin manually start the game as once it has started you cannot join.

I believe the admin said it was a join in progress error. I have re-created this on 5 other DEV servers and tested with/without parameters/mods. Even re-installed ARMA to make sure my optimizations weren't conflicting with.. something.

Seems to be a server side issue.
Hope this is helpful.
-Stone.