Widget Assertion Failure

I got this on a few scenes already, while working for 30 min or so for the 1st time with Corona 1.7 RC4, working with Project Manager reorganizing my libraries for Corona 1.7

"
An internal error occured: wxWidgets Assertion failure. Please report this problem to us.
File: ....\src\common\wincmn.cpp(459)
Function: wxWindowBase::~wxWindowBase
Condition: !wxMouseCapture::IsInCaptureStack(this)
Message: Destroying window before releasing mouse capture: this will result in a crash later. Learn more »
"

Let me know if I can help track this one out.
Cheers,
3dsmax_minidump.dmp (6.54 MB)

did it happened since then? What was the last operation you did immediately before the internal error was shown?

I closed the project manager window, got the error, and then wham, 3dsmax quitted on me.
It still happens every now and then, but I can’t track it down to something specific yet, I will get back to you if I manage to track it.