We are aware of a bug which can happen when a user tries to edit a text block.
Instead of the text editor box, this will come up:
To solve this, you need to clear your browser cache, or simply try a different browser. To clear your browser cache, try one of the methods below.
Option 2
If Option 1 does not work, try to clear the cache per your Browser's recommendations.
Option 3
If none of the above work, try switching to a different Browser.