Hide Title & Visual Editor

Hi,

I am have Storefront 2.4.5, WordPress 5.1.1 and Title Toggle for Storefront Theme 1.2.4.

When I am using Visual Editor to update a page the box to hide the title appears part way down the page and hides text in the edit area. I can drag this to the end of the page out of the edit area but it just goes back to the original position.

The only way to move it out of the way to change code is to switch from Visual Editor to Code Editor. Doing this it drops out of the edit area and goes to the end of the page.

Are you aware of this problem and is there a fix?

Many thanks
Joseph