I have this problem a longer time.
I have several various Dude servers. E.g. If I have server 6.48.2, but Dude client is 6.48.3 it started, I can see updating info and then it closed itself. I can run dude.exe again and again with the same result.
Another problem is automatic attemp to connect last client after client restarting without stopping option.
So If I have several 6.48.3 servers and one 6.48.2 and I tried to connect to 6.48.2 my dude.exe is in loop....starting, auto updating info from server, crashing.
Ok I can hold all servers + client up-to-date, but this is not normal behaviour.