toe_head2001 Posted December 15, 2021 Share Posted December 15, 2021 With the recent version of paint.net, it seems the WinForms Designer can't open a form derived from EffectConfigDialog. In VS 2022, the "loading" message appears for infinity. However, VS 2019 is more informative, as it displays an actual error message: 1 Quote My Gallery | My Plugin Pack Layman's Guide to CodeLab Link to comment Share on other sites More sharing options...
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