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PowerBI On-prem Server 2020.Oct Refresh issue

PowerBI On-prem Server Version 1.9.7627.11028 (October 2020), throws error below when refresh. (No error in Desktop when refresh):

SessionID: b5ab98f0-6d08-4450-bba7-304c652f8502
[0] -1056505856: COM error: mscorlib, An item with the same key has already been added..
[1] -1055784828: The database operation was cancelled because of an earlier failure.
[2] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.
[3] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.
[4] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.

Status: New
Comments
v-chuncz-msft
Community Support

@Anonymous 

 

That's a known issue. See post below for more information.