Drag and drop deployment in amplify has stopped working for me in eu-west-1

We ran into probably the same issue as well (see question here: https://repost.aws/questions/QUboDhRl5DSB20Qr6qmBUGXw/amplify-console-custom-domain-shows-different-content-than-default-url). Were you able to figure out what was happening? For us, it seemed like a caching issue, since the updates are reflected in the default Amplify generated URL, but not the linked custom domain. Deleting and re-adding our custom domain 'fixed it'. But of course that isn't really a solution.