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Bug description
PythonVideoAnnotator shows a blank canvas after closing and then reopening the "Track object", "Background calculation", "Mask edit" or "Path map" windows.
To Reproduce
Open one of the modules mentioned in the description, close the window, and then reopen the window.
"Track object"
"Background calculation"
"Mask edit"
"Path map"
Expected behavior
The expectation would be for the program continue to show the movie/masks/paths as it does on the first opening, instead of blanking, which makes accompanying modifications impossible.
Bug description
PythonVideoAnnotator shows a blank canvas after closing and then reopening the "Track object", "Background calculation", "Mask edit" or "Path map" windows.
To Reproduce
"Track object"


"Background calculation"


"Mask edit"


"Path map"


Expected behavior
The expectation would be for the program continue to show the movie/masks/paths as it does on the first opening, instead of blanking, which makes accompanying modifications impossible.
Desktop and Versioning Details