When playing in either SP or MP mode, if you press the period key you get an exception.
Error in log is as follows:
[2016-06-01 08:41:18] java.lang.NullPointerException
[2016-06-01 08:41:18] at obfuscated.awG.<init>(SourceFile:88)
[2016-06-01 08:41:18] at obfuscated.mG.<init>(SourceFile:46)
[2016-06-01 08:41:18] at obfuscated.mG.<init>(SourceFile:36)
[2016-06-01 08:41:18] at obfuscated.as.<init>(SourceFile:16)
[2016-06-01 08:41:18] at obfuscated.df.<init>(SourceFile:178)
[2016-06-01 08:41:18] at obfuscated.de.d(SourceFile:178)
[2016-06-01 08:41:18] at obfuscated.cx.d(SourceFile:303)
[2016-06-01 08:41:18] at obfuscated.cD.d(SourceFile:135)
[2016-06-01 08:41:18] at obfuscated.D.k(SourceFile:3434)
[2016-06-01 08:41:18] at obfuscated.aCP.a(SourceFile:103)
[2016-06-01 08:41:18] at obfuscated.D.updateStateInput(SourceFile:1463)
[2016-06-01 08:41:18] at obfuscated.auB.a(SourceFile:624)
[2016-06-01 08:41:18] at obfuscated.auG.b(SourceFile:601)
[2016-06-01 08:41:18] at obfuscated.P.e(SourceFile:895)
[2016-06-01 08:41:18] at org.schema.game.common.Starter.startMainMenu(SourceFile:1221)
[2016-06-01 08:41:18] at org.schema.game.common.Starter.main(SourceFile:1023)
[2016-06-01 08:41:18] [GLFRAME] THROWN: class java.lang.NullPointerExceptionPrinting StackTrace DONE
Happens on Desktop with NVIDIA chipset, and Laptop with Intel chipset. Game seems to run normally after the dialog box is closed.