Edit with elementor loading long and can`t edit more then 1 element

I downloaded Elementor today together with Neve theme and worked all morning without problems, a few hours later when I returned, page is loading very long every time when I click “edit with elementor” and when I change for one element the colour code, I can′t change any style for other elements anymore (but it allows to change text). I have to update, close and open again (when waiting 2 minutes to open the site). All requirements are ok, everything is updated, I tried safe mode for elementor, debug mode for the site, memory limits are 256m, I deactivated plugins..nothing helps. I use a free version of Elementor. Can someone advise how to overcome those issues?