Auto start favorite does not work

Hi there

While I built two raspy-based picoreplayers I wanted to start them with a dedicated radio station after hard power off. I tried the built in function and followed the instructions / preconditions. All the preconditions are fulfilled but I cannot see any of the favorites in the drop-down-field. Neither if I am setting it to "enabled" and do a reboot the list of favorites is still empty.

My LMS is running on a synology NAS.

Thanks