BTW, I’d like to follow-up on this. I’ve confirmed that it’s very likely a theme conflict between Weblog Pro theme and the WordPress Rich Text Editor. I activated the default WordPress TwentySeventeen theme with the same plugins (asagros forum and accesspress post), the Rich Text Editor works fine in all browsers. However, I can’t type in anything when I restore back to the Weblog Pro theme. Please let me know when do you think this to be fixed. Thanks a lot in advance.