Sure.
Open up a photo in One Up Mode.
Click on the Keywords Tool
Add KWs from the appropriate list. They all appear in the window above the lists
Click on the edit tool without any other action first.
Either edit or return directly to the KW tool
Check window – no keywords.
Yesterday this got worse in that even pressing V to return to grid wouldn’t save the KWs. On one occasion I rebooted Nitro and they appeared after rebooting. I’m now only entering KWs via the metadata menu which works perfectly.
I hope this helps!
Thanks
Nick