We have a slack integration setup with Unity Cloud builds that automatically post links for successfully created builds that users in Slack can use to download the build. These urls are now failing displaying a 502 server error webpage to users instead of allowing the cloud build to download.
Getting a download link for the cloud build directly from the DevOps build history is working so it seems to be something is up with the url generation for cloud builds that the slack integration is using.
Now resolved as per this post:
An example url from the intgetration that is failing:
Device Detection{share id}