I have a smb location bookmarked, and it shows in thunar, but it does not show in the panel plugin. I can still add local bookmarks and they show, just not anything networked.
Created attachment 5228 Add support for network bookmarks This is a bit rough, but it works and does everything the old code did. The code is lifted from Thunar, which uses a different coding style - I haven't fixed all of it.
This also fixed #9175 and #9259.
Fixed in git master.