I have the same,
Wow Retail – Addon version: 8958
As test, no other addons loaded, Just dugi.
I removed the addon, cleared cache, log, deleted the files from saved variables and WTF dirs, everything *dugi* i could find…
Reinstalled it, and exactly the same problem 
i tried a few guides, in my case, Tailoring levelling (Shadowlands) and Shadowlands > Night Fae Covenant Campaign (60+) same issue.