Bug Report - PP 15.0
When bringing in a .mogrt on the new update my whole editing team has this error, which we've never seen before.
I'm sorry you're hitting this error. Unfortunately, there were some bugs baked into Mogrts exported in previous releases that corrupted the JSON information and was causing crashes in Premiere.
The fix is to re-export it out of the latest version of AE 18.0.1.
You can open a .mogrt natively in AE by going to the Top Bar menu, choosing File > Open and then following the dialog to "extract" the .aep and related media.
The re-export should fix the corrupted JSON data, but if it doesn't, would you mind sending me the .mogrt so we can check it out on our end?
If you have a ton of mogrts though, one of our devs created a script that can fix the json data more quickly. I can email you the script with a demo video for how to use it if that is helpful as well.
Apologies for the inconvenience,