@alan7lp I do not have a real solution but this issue popped up again with vengance about 2 weeks ago. The only thing that seemed to help (not resolve but at least reduce the time to refresh the query in the query editor to resolve the !) was to clear the cache. I am not sure if there is any correlation to me doing that and the error resolving in less time but worth a try maybe?
1. Access the FILE ribbon from the PBI Desktop
2. Choose Options and settings > Options
3. Data Load > Clear Cache
After this I generally close all PBIs and do a restart on my computer (probably overkill but just want to make sure). Hope this provides some relief 😀
I tried this before but it didn't work. It seems something changed with July's version because I tried again as you described and finally works! I have been working with the version of Feb-20 because anyone from March it wouldn´t refresh anymore.
Thanks a lot! 🙂 Happy that I will be able to use all the new features again!