[ C7] Error creating trigger using date/time variable and "changed"

I was creating a trigger based on a Date/Time Hub Variable "changing" in RM5.1 and RM threw an error (I can no longer edit/update/change the rule):

The variable was:

This is totally repeatable.

  1. Create a new RM5.1 Rule
  2. Add a new trigger
  3. Choose a Variable trigger
  4. Select a DateTime variable
  5. Select "changed" for the condition

That's it.

Yes, there is a bug. I guess you're the first person ever to try this. The fix has been made...