Hello irripod, can you open an issue here ?
https://github.com/aaFn/Bookmark-search-plus-2/issues
I would need the traces contents (go to options panel for the add-on, and tick the "Activate trace" box. A readonly textarea should appear with an history of what happened.

Thanks, and sorry for the inconvenience, let's tackle it, aaFn.

PS: Hopefully bug corrected with 2.0.29 now, let me know, and sorry for the inconvenience.