Hello!
I’m having a similar problem with posted images on the forum I’m working on, I also have a support thread about it.
The background is a little different: I haven’t renamed the forum, but I did migrate it to docker and set up HTTPS. We use AWS and the S3 bucket’s name had forbidden characters so we renamed the bucket, but all images are still pointing to the old bucket name which doesn’t work.
Is it possible to use remap to point these images to the new bucket name? Also, are you running remap from the same place as you run rake commands?