So I have been experiencing some issue with GTM (Google Tag Manager). I was working on a Wordpress site... and I noticed that this error started to show up "Uncaught TypeError: Cannot create property 'greensock' on string 'firstname|lastname|username|email|emailaddress|ssn'" .
After pulling my hair out... I was able to fix the issue by moving down the GTM script to the very bottom of the head.
So now, I have another project. wordpress as well... and a developer is seeing the same issue... but ONLY in "gtm preview mode" . Any thoughts?
-Thomas