Hi,
thank you very much for your report. I have checked the database and also the MSFS dataset and I can´t reproduce it - here when I set the VORs in the FBW A320:
VOR POI 113.30
… and here the DME TIS 117.50:
You see that both navaids are included and selectable … the POI is a VOR only navaid, so no DME component. The TIS is a DME only navaid so no VOR component. Therefore you have different views, but all in all - both are available.
Cheers,
Richard