422 Validation Failed when uploading new version

Hey,

Thanks for a great package, but I have a small issue.
The first time I uploaded my helm chart everything worked well, cr upload and then cr index did the job.

But now, when I am trying to upload a new version I keep getting:

> 422 Validation Failed [{Resource:Release Field:tag_name Code:already_exists Message:}]

Tried increasing the version and the appVersion in Chart.yaml but still keep getting the same error.
What am I doing wrong?

Thanks!