CSV import ends up in unresolvable state I'm having a problem with Feeds and Commerce Feeds in D7. 

I am using Feeds and Commerce Feeds to import products into my Drupal Commerce store.

The CSV import was failing with a 403 error. Once this happened the import button was greyed out with text showing "importing 21% complete". Initially I cleared the message by running a delete and then reuploading. Now the delete tab has the same problem! It says "deleting 51% complete" 

I have added a support request for this on drupal.org; but I think that the question may be better suited here as a "how-to" type answer would seem more appropriate.

Any ideas on how I can sort this out?
I solved the problem by cloning my import. 

When I selected the cloned import it wasn't hampered by the progress information and greyed out import button. I could just upload my csv via the new import.