All color pickers do not work at least in my installation. I did not find the choice to activate the theme css. Also new options for read more etc. do not work in my installation. Might there be an error in the new version?
I am back from holiday and come back to this problem. May I ask you to have a look into this problem which exists since the new release. I found no entries in the console section. May I ask you to inspect my site. I send you the access data by contact form.