Argh - getting 20,000 character limit error in Description when I am not yet at 20,000 characters!

I am getting 20,000 character limit error in Description when I am not yet at 20,000 characters!

"Please correct the errors below.
The field Description must be a string with a maximum length of 20000."

HERE (error): https://app.ownerrez.com/properties/182669/description/edit

I COPIED FROM HERE (no error): https://app.ownerrez.com/properties/220953/description/edit

And all I am doing is copying the Description Text from another property, which does NOT have the error.

Did you overwrite the description with the one from the other or combine the two?

The character count limit includes the HTML formatting markup, so it will be a bit more than the actual text. You can see that by hitting the <> button in the toolbar to view the HTML. Those are both around 14k characters so individually they'll work fine but if you combine them together you end up at 28k characters which is over the limit.

You've got a lot of content in there, and if you're planning on distributing to channels you'll hit their limits before you hit ours. HA has a 10k character limit and TA a 5k character limit. Both of those limits are text only (we automatically remove the formatting when pushing to channels).