Task locked by Workflow Builder

Hi all - hoping someone has run across this. i'm surprised I didn't find anything in the forums on this. I created a workflow, but realized I didn't name some of the task container elements in a few steps properly. So, in attempting to go into the send mail steps to rename the task container elements, I get the following:

"Task TS99900143 locked by Workflow Builder"

I'm unable to edit/rename/or even add new task container elements. However, I am able to make changes to other parts of the workflow (i.e. workflow container elements, etc).

Any idea what I need to do? I logged out, logged back in to see if it would get unlocked. I had this problem yesterday as well, so I thought maybe even overnight something would get unlocked, but that wasn't the case.

Thanks,

Steve