Standard P3D airfields use Multicom frequency 122.9

[williguido]

Hello,

Out of sudden standard P3D airfields use the Multicom frequency 122.9 when "called" via the `-Key.
When loading airfields in to ADE the correct frequencies are listed.
Airports (like Munich) use the correct frequency!

Deleting the P3Dconfig file during update did not help.
I appreciate any help or advice how to fix the issue.

Rgds
Guido

System:
W10-x64 with 8GB of memory
P3D V.3.4.22. .19868