Arg, I was crossing my fingers that you'd have access to a trackpad somewhere.
It's a long shot but I'm wondering, since all the other scroll windows in Calibre work fine, like the TOC scrollbar, could the book text area scrolling use that same scrolling module/code instead of the custom one it is using now? The main text window seems to be following separate settings/behaviors than all the other scroll windows in Calibre like the TOC which works great.
The scroll rate of the book text area is also like triple the speed of all the other normal scroll windows in Calibre or elsewhere on my mac (you can see how far down just a small movement scrolls in the recording). I wonder if this speed discrepancy might also be related to the issue.
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