So, basically, I got .goodnotes file (digital planner imported from pdf) and when I make export file as pdf editable with annotations and background - it creates pdf file (yeey) but most part of hyperlinks are missing, or some layer of text is missing.
For example - hyperlink to January, February will work, but April will not. Also I did re-check exported pdf into foxit reader - and it also shows that there is no particular hyperlinks but my main file do has. So it means, there is this annoying bug.

Also, on iPad 9th gen Goodnotes 5 (last updated version) export even does not work. It starts but almost on finish it brings user to iPads main screen and no file generated at all. Simply as crashed app.

And yes, Goodnotes is updated.