When removing duplicated frames, there was no indication that the process was still going on.
When applying the KeyStrokes with a margin, it would result in a wrongly sized panel.
If you cancelled the video import, the progress bar would not be hidden away and the app could crash.
When creating a new blank project and trying to apply the Obfuscation feature, the app would crash, because of the image depth.
When using the FFmpeg as the APNG encoder, the app would crash if the parameter field was empty.