Call Recordings not able to download from 3CX Desktop App V18 Update 4

[MKH3CX]

After updating to version 18.0 Update 4 (Build 965) we are no longer able to download recordings in the 3CX desktop App. We tired updating the app
from 18.5.28 to the version shipped with Update 4 18.9.933, same issue. Has anyone seen this issue?

thanks
Michael