Armadillo Rich Text editor missing. Help!

I have used Armadillo for many years and I love it. However, I just noted that the text editor feature is gone. I have selected it in the general settings, tried Chrome and Safari, republished RW, restarted RW. I have not upgraded to the most recent PHP because I was previously getting Slim Application errors. Any help appreciated!
Mac Catalina, Armadillo 2.9.8, RW 8.9.4, Chillidog Hosting, PHP 7.4.