Hey all, seems like there is an issue with 2.7.1. We had this same issue, it is getting stuck and using up 100% of your CPU on SQL.
The temporary fix we found was to go into Elementor -> Tools -> Versions -> and do a rollback to 2.7.0. It will run the data updater again but should take just a minute or two. Hopefully, the team at Elementor will address this and put out a patch to fix it soon.
