Selected row highlighting is not moved on scrolling in the SRE

Scenario:

1. Open "_common_data/sanger/alignment.ugenedb".
2. Ensure that all chromatograms are visible (all rows are expanded).
3. Click on the third row name in the Name List.
   Expected result: the third row is selected, there is a highlighting rectangle in the reads data area that shows which row is selected.
4. Scroll down a bit with a vertical scrollbar.
   Actual result: the alignment is scrolled, but the highlighting rectangle doesn't change its position, so it doesn't match the row position. See the attached screenshot.
   Expected result: the highlighting rectangle match the row position.