I had a passage guide open today that had many commentary sections, based on different collection criteria.
While trying to use the guide, the commentary results started to constantly disappear then reappear a few seconds later. This went on for a couple of minutes, making it impossible to use the guide during that time.
A new purchase had downloaded, and the library catalog (and collections) were being rebuilt. Once that completed, the passage guide was back to normal.
It would be helpful if the passage guide wouldn't "flake out" like that while collections are being rebuilt, and wait until that process is finished (instead of constantly re-searching during the rebuilding process).
This is L7.4 (7.4.0.0032) on macOS 10.12.3 (16D32).
Thanks!