Hard to say. It could be a bug.
Start by checking if you can show field values from the two entities in Run_CanPost:
MsgBox TestSetTest_Fields.Field("TC_USER_04").Value
MsgBox Run_Fields.Field("RN_RUN_ID").Value
Start by checking if you can show field values from the two entities in Run_CanPost:
MsgBox TestSetTest_Fields.Field("TC_USER_04").Value
MsgBox Run_Fields.Field("RN_RUN_ID").Value