Unbound DNS Log Errors

[roblang]

I have recently set-up a fresh install of OPNSense and everything is working apart from the Unbound DNS log containing a lot of errors (see sample below).

2024-11-29T19:53:44   Error   unbound   [49173:2] error: recvfrom 45 failed: Protocol not available   
2024-11-29T19:53:44   Error   unbound   [49173:2] error: recvfrom 46 failed: Protocol not available   
2024-11-29T19:53:44   Error   unbound   [49173:2] error: recvfrom 45 failed: Protocol not available   
2024-11-29T19:53:44   Error   unbound   [49173:2] error: recvfrom 46 failed: Protocol not available   
2024-11-29T19:53:44   Error   unbound   [49173:2] error: recvfrom 45 failed: Protocol not available   
2024-11-29T19:53:44   Error   unbound   [49173:2] error: recvfrom 46 failed: Protocol not available   
2024-11-29T19:53:38   Error   unbound   [49173:0] error: recvfrom 35 failed: Protocol not available   
2024-11-29T19:53:37   Error   unbound   [49173:2] error: recvfrom 48 failed: Protocol not available   
2024-11-29T19:53:37   Error   unbound   [49173:3] error: recvfrom 36 failed: Protocol not available   
2024-11-29T19:53:36   Error   unbound   [49173:2] error: recvfrom 39 failed: Protocol not available

Can someone point me in the right direction to troubleshoot where these are being generated.

Thanks in advance.