1) SVN Bar plugin is broken in M2, if anyone cares.
(Was crashing with "no parent" swing error).
Also stops some other UI stuff from working
2) Get an occasional
Error: Error: Argument 3 for @NotNull parameter of com/intellij/util/io/ByteBufferIntObjectMap.]]> must not be null
3) The targets for execution/select run configuration (dropdown on top) doesn't work. I click for it to drop down, nothing happens. It draws some little square below the left bottom corner and that's it (no actual dropdown)
4) None of the execution targets think I have classes available for execution (even though things compile ok and those files are clearly there and have been)
5) Speed. Probably the debug mode?
(this all works if I start from within 6.0.5)