Can you be more specific what "bug" occours?
I see that you have Farbrausch V2 loaded and that the main thread hangs while trying to close that plugin. We have come to the conclusion that Farbrausch V2 shouldn't be used in combination with any other plugin because that will freeze OpenMPT (or any other host), so that wouldn't be a valid bug then. I can't do anything about V2 freezing, just like any other host developer can't do anything about it.

I was playing several times the module, then I close it. I've reopened module, and do the same stuff, playing random notes across intruments and then closed the module. After close module, OpenMPT hangs. It shows as white window and not responding.

Should I do a deep test without any V2 plugin?

That's not necessary, because the hang clearly happens in V2 and it is a known problem. V2 can freeze any host when unloading the plugin (e.g. when closing a module).
http://wiki.openmpt.org/Manual:_Known_Issues#Farbrausch_V2
http://forum.openmpt.org/index.php?topic=3673.0
http://forum.renoise.com/index.php?/topic/31361-superwave-p8-and-farbrausch-v2-in-the-same-track-can-freeze-renoise/