IGMP packets with VLAN tag using egress ACL rules

Hello everyone,
Working on my home system, I got the root cause that DANTE devices connected to my CRS112-8P-4S wont pass audio due to the ptp clock not arriving properly. I basically get clocking errors in the Dante controller and the Device would mute itself.
topology.JPG
My preferred Dante Clock master is connected on the “Switch Keller”, my CapsmanRouter is my IGMP - Querrier. There is the rumour out there that one could apply IGMP packets and / or the Dante Clock packets with a VLAN Tag so that it would work on the small CRS112s. But I honestly got no idea on how to setup such a rule.
Configs are here:
Router:
swicht-keller-2024-01-16.rsc (5.52 KB)
SW Keller:
capsmanrouter-2024-01-16.rsc (15.6 KB)
Example for CRS112:
switch-garage-2024-01-16.rsc (2.91 KB)
Thanks a lot

Jens