Datasets Failing to Fetch with Error - Invalid Scheme: Only HTTP and HTTPS are allowed

CMS Version

4.4.3

Issue

Hello,

We’ve recently upgraded to 4.4.3 from 4.2, but we ran into a few issues, notably that displays using websockets to connect to the CMS were having trouble connecting. We were able to resolve this by altering our configuration of apache to allow websockets, but it seems as though we now have an issue with datasets. The “Fetch Remote Datasets” task is returning the following error:

We’re having a bit of trouble trying to figure out what the issue is. What troubleshooting steps could we take for this issue?

Thanks in advance!

Check apache config and logs for ws/http routing paths/errors, also check if dataset http links are accessible from that player PC.