Solved...
The relationship changed to "one to many" and that is...
regards
I believe if you scroll down - you'll see which table(s) is causing this and then you can troubleshoot the issue
most likely something changed in the source table - renamed/deleted field maybe - try the Query Editor
yes Power BI Desktop says this
but proyectoID is not a primary key
And right now OLE DB or ODBC error that before no
This is a bit of nightmare....
Solved...
The relationship changed to "one to many" and that is...
regards