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I can't reproduce it either no matter what I try, and also never ever had that effect.
Maybe, again, some third party app spitting into the soup.

video how it happens

HeX0R wrote: Thu Jun 26, 2025 6:43 pm I can't reproduce it either no matter what I try, and also never ever had that effect.
Maybe, again, some third party app spitting into the soup.

Thanks for the input - However, I don't believe it's due to any third party app interfering with the IDE / Scintilla highlighting (particularly I don't tend to use any out-of-the-ordinary apps), but i'll keep an open mind.

AZJIO wrote: Fri Jun 27, 2025 2:37 am video how it happens

Thanks for doing the video.


If you change the 'Folding' parameter on my sample (i.e. from '6' to '5'), it no longer causes the issue - I don't know how the '6' value is interpreted inside the IDE, but i'm speculating that trying to fold/unfold non-existant code could be causing some kind of Scintilla state corruption during an Undo process...

pjay wrote: Fri Jun 27, 2025 8:04 am However, I don't believe it's due to any third party app interfering with the IDE / Scintilla highlighting

I think so too. It doesn't interfere with version 5.73.