Error counting words in classic editor

Hi, thanks for the amazing plugin, it really helps to control what editors do!

I’m currently having an issue with PublishPress Checklists 2.5.0 and Classic Editor 1.6.2: It counts the required word (I’m requiring at least one to save) the first time I’m creating the post, but everytime I want to edit one already created it fails to count the words and won’t let me save. Even if I have a full text with multiple paragraphs it says I don’t have the required word in content.

I don’t have any console errors, and the rest of the requirements work great (featured image, excerpt, title, at least one taxonomy…) so I guess it’s a conflict with the Classic Editor.