When trying to calculate geometry on a feature class with a joined table, the error code "001486: Cannot use fields from joined tables" appears, despite trying to make the calculation on a field from the source table (as in, NOT the joined table). This was a common workflow possible in ArcMap, and should be made possible in ArcGIS Pro. The current workaround is to remove the join, make the calculation, then add the join again--an entirely tedious and inefficient process.
