I upload a huge file with the uplink, y stoppped it with control+c before its terminates. Now the bucket has no files, but in tardigrade appears 6GB of space used. I cant remove it, i cant see it.
We see the same with Filezilla upload: Us2 beta with filezilla - #47 by jammerdan
You can try to upload again and let upload complete. Then you should be able to delete the file.
The other way is to delete a whole bucket with --force option or use an AWS CLI to abort pending multipart upload.