Cause
You entered the device identifiers of both function in different ways:
When you added it to the schematic, you entered the device identifier in the "normal" way under Displayed DT in the Properties dialog. The same device identifier for the other functions were entered in the Full DT dialog which gave the identifier character as well as the counter together in the Characters field.
Note:
You can access the Full DT dialog by clicking [...] in the Properties <...> dialog next to the Full DT field.
Solution
Change the device identifier which you entered in the Full DT dialog. Enter the identifier character and the counter separately in their own fields.
Then start a new check run.