I just updated the new PBI Desktop February version on my personal PC & on the server where we have the on-premises gateway, and in both cases, PBI Desktop refuses to open some of our pbix models, which were opened perfectly just an hour ago. The message I get is:
"We weren't able to connect to the model"
These models continue working when oppened with Online Services and the previous January Desktop version (on another PC).
I tried to update the PBI Gateway, but this didn't change anything.