Label Legend Scrip error

[Steve Nield]

While trying to edit an existing label legend, I can edit the 2d text layout with no issue, however if I try to add fields i get the attached scrip error. The only way i can avoid this error is to create a new label but after creating it I still get the same error if i try to edit the fields again 

[David Meagher]

I get the same error. This just started happening to me too.  I can not create a new legend or edit existing ones without getting that script error.  I'm not so sure how I'm supposed to draft my current show. 🤔

[klinzey]

We found an issue in some files that contain more than 10 Label Legends. We will issue a fix in the next service pack.

If you have a file that has this problem we recommend importing or creating the Label Legend in another file, editing the Label Legend there and then importing the new label legend back into the original file.