I tried upload a redirect file and running into bad request file. I know there was a new release for ER this month and wondering if the file format changed. The documentation still shows the current format but I have been having trouble uploading redirects. I also noticed that they have added validation to check for duplicates since my existing version wouldn't save even if for just adding a version note. I had to delete the duplicates to save the version. The line numbers the error message was reporting as duplicates totally didn't match and I had to guess the duplicates.
Anyone else seeing this issue? Can you test bulk upload and see if it works?