Sidebar rows go blank while scrolling (iPhone / iPad)

On iOS and iPadOS, scrolling a long sidebar can leave the rows that scroll into view blank until something else redraws them. This is a regression introduced by a rendering change in 1.15.3, and the cause is identified. A fix is being worked on and will ship as soon as it is ready.

Mac is not affected.

Fixed, and 1.15.4 is now in review. I also requested an expedited review, so it should go out shortly after it's approved.

1.15.4 is out on the App Store. Updating fixes the blank sidebar rows on iPhone and iPad.