Cannot edit any text; TinyMCE issue

Suddenly, I cannot update or open any of the text areas in Builder. I am guessing it is due to the recent WordPress update. It was happening before the most recent Make update and after the most recent Make update. I’m getting two errors, but I’m not sure if they’re both related. Please help as I cannot update my pages now. I’m not using any TinyMCE plugins.

Uncaught TypeError: oneApp.builder.tinymceOverlay.open is not a function
at n.onContentEdit (item.js?ver=1.8.4:73)
at HTMLDivElement.dispatch (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:3)
at HTMLDivElement.r.handle (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:3)

Uncaught TypeError: Cannot set property ‘onsubmit’ of null
at eval (eval at <anonymous> (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:2), <anonymous>:8:17)
at eval (eval at <anonymous> (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:2), <anonymous>:139:87)
at eval (<anonymous>)
at load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:2
at Function.globalEval (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:2)
at Ha (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:3)
at a.fn.init.append (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:3)
at a.fn.init.<anonymous> (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:3)
at Y (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:3)
at a.fn.init.html (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,jquery-ui-core,jquery-ui-widget,jquery-ui-mo…:3)