Error Errno(98): Address already in use

[CharmiUwU]

Hi, I am running into a problem when starting udm iptv. The service fails with the following message:

can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use

The IPTV service restarts normally but this error keeps appearing every time. I have already reset the configuration, deleted the iptv interface created by the script, and restarted the device, but the message remains.

Is there anything I should check to see what is binding to that multicast address, or is this related to how the igmp proxy is being initialized on the UDM? The VLAN I crated has this settings (image attached).

I had to install igmpproxy by myself because the script to install the udm-iptv won't install it.

Any guidance would be appreciated.