Started getting this error on an old dataflow as of 14-Jun-2021. No changes made. Error: Expression.Error: We cannot apply operator < to types Date and DateTime. Operator = < Left = 5/1/2020 12...
I'm seeing this same issue also. Dataflow had been working fine for months and then started failing on 6/11/21. I thought I somehow inadvertently change something with it when looking at it the other day, so I went back and started from scratch, building everything step by step and confirming data along the way. Even with two date-typed columns, I get the reported error. Everything loads (and compares) fine in the preview screen.