I'm encountering an issue where the Rich Text Editor is not showing, so I can't update anything in it. See screenshot below.
I ran into this several times –when I edit Landing Page, the rich text editor always goes blank that I cannot edit, do you know why it happens and how to fix it?
I've tried to clean the cache of Marketo, but still, the issue is appearing.
My best bet is that this issue must be temporary and must have got resolved on your end. If NOT, I'd suggest to log a support ticket.