Change WordPress user roles and capabilities › Forums › Restrict or Permit access inside WordPress – how to › Serious problem with user not able to edit content blocks. Settings are correct. › Reply To: Serious problem with user not able to edit content blocks. Settings are correct.
Good news. After repeating exact settings as on your stage site I can repeat a problem at my local dev. environment. On the 1st glance, URE applies restrictions some time before “content_block” custom post type is defined so it can not check permissions on its edit correctly. I will proceed with testing and return to you with the solution.