Cannot delete tags using My Tags X

Hello,

After having recently tested Community Tags 6.x-1.0, I have noticed what appear to be two extremely critical bugs that would keep many people from using this module.

I am opening this particular issue because Community Tags is not letting me delete & disassociate terms from a node. When I add terms using the My Tags box, they are added correctly. However, when I click the X to delete them, they are removed from the My Tags box, but they are still displayed (and associated) with the node.

This is similar to, but slightly different from, http://drupal.org/node/250300.

This bug, plus "New tagging erases existing tag in different vocabulary" are IMO the two most important bugs facing this module.