The current pre-release of the client ("pioneer" in the version) is only compatible to itself. So you can only play with other testers. Please be aware!
Hi @JohnDoe we can not see the Exception that you try to tell us about. Please post it as well. Please also provide a more detailed description if you want help.
What did you do when the Exception pooed up?
Did you get this Exception frequently?
Do you have a way to reproduce getting this Exception?
