ArcGIS Pro 2.6 - Symbolization issue with Subtype/domain values in the joined table.

[BranislavBlagojevic]

To symbolize data from a related table I joined a table with a Feature class (actually there is no other way in either ArcGIS Pro or ArcMap). The values in the joined table were controlled/validated with the Subtype associated with the corresponding domain. In the symbolization panel, I chose Unique values as the symbolization method over the values controlled by the domain, however ArcGIS Pro ver. 2.6 reads/returns values from the adjacent subtype field, not from the selected one !?!(see image below).

In ArcMap, this works as expected (see image below).

Please fix this!

Thank you.