This is most likely a known windows bug regarding multicast routing. Chased this issue for a year until finally Intel and Microsoft teamed up and gave this reply:
The engineering team has investigated this multicast issue with Microsoft. Microsoft is aware there's an issue with the multicast address managed by the OS. The issue has been introduced together with Windows 10 (WDI arch for WiFi Drivers.) Any scenarios of WLAN reconnected (i.e. Airplane mode, roaming out and back into RF range, or disconnect and reconnect to the same SSID) and then the multicast packets might be affected by this issue.
Currently this issue is expected to be fixed for Windows 10 Version 21H1.
Basically will multicast stop to work if your wifi has any issues. Can only be resolved by disabling/enabling the interface, reboot machine (or toggle the ipv6 setting).