SUMMARY
Okular allows the user to create multiple bookmarks in a PDF file by right-clicking then clicking `add Bookmark` from the menu. The user can navigate between bookmarks by right-clicking and choosing `Next Bookmark` or `Previous Bookmark` from the menu. However, with some bookmarks clicking `Next Bookmark` doesn't do anything, and I'll need to right-click then click it again for Okular to move to the next bookmark.

STEPS TO REPRODUCE
1. Create multiple bookmarks in a PDF file
2. Cycle between bookmarks using right-click and `Previous/Next Bookmark`. 

OBSERVED RESULT
Sometimes two attempts are needed to get to the next bookmark. 

EXPECTED RESULT
One attempt would work.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro KDE
(available in About System)
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2 

ADDITIONAL INFORMATION
I had thought at first that I could be dragging the PDF a little with the mouse, causing the view to move by a tiny amount from the bookmark, then `Next Bookmark` would appear not to do anything because it only reverses the tiny deviation from the bookmark. However, the problem seems to appear consistently with certain bookmarks and not others, so I do not think this is the problem.