Windows is not responding to clicks anymore after opening a window timed and while dragging another window

Please have a look at this FC and the sample project:

Click the button and drag the window.
After the second window is opened Windows isn’t responding to any mouse clicks anymore.
Even other applications like Microsoft Word or anything else aren’t responding to mouseclicks anymore.

Nearly a year ago since we reported this.

Has anyone an idea for a workaround or a solution?

Put this in before your ShowModal call:

Declare Sub ReleaseCapture Lib "User32.dll" Alias "ReleaseCapture" ()

Works great, thanks!

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