Hi Ryan,
I've just encountered a weird issue :
If you remove a the text from a paragraph in a column by selecting all and then pressing BACKSPACE), the paragraph tag is removed.
You can still type some text, but if you press ENTER to create a new paragraph, it create a new column.

I've tested on your demo website just now.

Here is a gif to help you understand the issue :

Hi Ryan,

Thank you.
It works perfectly for the 1st column.

I've just discovered a new bug : if you do the same manipulation seen in the gif of my first post, but in the 2nd column : the 2nd column is completly removed.
This occurs on the 2.9.24 Beta 1, and also in the demo website.

Regards