Icon list scrolling crash - Can you help us track it down?

We've had a bug report which we can't reproduce, so I'm asking here to see if anyone else sees the same problem, and if a pattern emerges.

It involves Preferences / Toolbars / Icons:

  • Install enough icon sets that the list can scroll.

    If needed, here's an archive with three icon sets, which should be enough if the window is minimum height: Icon Sets Crash.7z (693.5 KB)

  • Scroll the list up and down with the mouse wheel.

Based on the crash dumps, that's triggering a bug in the Windows ListView control where it does a divide by zero (likely due to the ListView not updating its scrollbar and related metrics internally). But I can't reproduce it, which makes it very difficult to find a workaround.

It's the top list that we're concerned with (not the bottom that shows a preview of the icons). If scrolling the list using the mousewheel crashes for you, please let us know. Thank you!

Win10 64

Have 10 sets loaded. No issues with scrolling up/down.

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Windows 10 Pro (20H2).
Dopus 13.0.34 (I know, it's old. But it works so I haven't updated it :slight_smile: I'll update now and test again. I'll only report back if I can make it crash).
41 Icon sets loaded.
Wasn't able to make it crash no matter what I did. I scrolled with mouse wheel (a lot), dragged scrollbar up/down and used scrollbar top/bottom arrows in combination with clicking things or moving sets up/down the list, all while going back to mousewheel scrolling. Minimized the main lister. Resized preferences window. Tried lots of random and combination of things. Sorry.

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Win10 64
I have 17 icon sets loaded.
I also was unable to crash it.

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Tested it with my own sets (enough to have that scroll bar), with minimum width and/or height, no crash with the scroll wheel either. Same, when yanking the handle up and down with the mouse.

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Up to date Windows 11, no issues for me.

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I also have no problems with scrolling up and down in windows 10 (22h2).

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