https://bugs.documentfoundation.org/show_bug.cgi?id=170216

V Stuart Foote <[email protected]> changed:

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--- Comment #9 from V Stuart Foote <[email protected]> ---
What you show is not "highlighting" but rather "selection". 

While your "scrolling" shows expansion of the selection as adjusted with
movements of the viewport.

I observe the same dropout of the indicator highlight of what is selected
content *while the selection is being expanded*, but it stabilizes once
selection is finalized and movement of selection cursor stops.

IMHO this is absolutely normal and expected as selection is not a double
buffered display event.  Meaning only a selection being made without a change
in view port could be 100% stable. Once the view starts moving with the
selection, the selection highlight "overlay" is being recalculated repeatedly
as the view changes.

And, this is not related in any way to table cell background fill or character
highlighting applied to table cells. When applied those must, and do, scroll
with changes in view port.

Please adjust the issue summary, or close the issue.

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