Had a similar issue with tinymce. Couldn’t get edits to save. I would make the changes and hit save and it would lock up. I deactivated another plug in, mojo marketplace, and it seems all is well again. I am running the Hueman child theme and have the latest updates on the theme, tinymce and wordpress as of this date.
Got the answer from my hosting company. No need to respond. We ran out of php memory. Thanks anyway!
