What steps will reproduce the problem? 1. Open a plug-in window 2. Grab the window and move it around, dagging it not by the header, but another section of the window body

What is the expected output? What do you see instead? Moves with errors on program exit.

Error message in log: Traceback (most recent call last): File "plugins\played\played.pyo", line 170, in OnMouseLeftUp

File "wx_core.pyo", line 9741, in ReleaseMouse

wx._core.PyAssertionError: C++ assertion "GetCapture() == this" failed at ....\src\common\wincmn.cpp(2536) in wxWindowBase::ReleaseMouse(): attempt to release mouse, but this window hasn't captured it

Comment deleted

added error checking: try: self.ReleaseMouse() except wx._core.PyAssertionError: pass