Channel Naming scheme in Audio Export not working properly?

Hello,
User of Cubase for over 30 years.
Suddenly the naming scheme in audio exports is different.
When I try to export multiple VST instruments all with different names and I put in my naming scheme that I just want the file name and nothing else it says I have to change the naming scheme as there will be duplicates.
I am in the multiple exports dialog.
Nothing I do will allow it to just export with the channel name.
Anyone else see this?
Paul