I have been experiencing quite a few issues with the new template editor. Previously I had been getting this error anytime I tried to edit an older template: Cannot read properties of undefined (reading 'data')

I then created the template completely from scratch using only the new editor, no additional code. Now when I clone this template and try to edit it I get this error: RangeError: Maximum call stack size exceeded
 

This is after doing a bunch of edits which will be now be lost and is taking a large amount of time to completely redo.