Not sure if this is a Bug or not, but I am in the middle of making a Homebrew item (surprise surprise). In the description, I used italics on a sentence, before I wrote it and every letter  or word afterwards is italics. I have tried deleting and making sure italics are off and it continues to be in Italics. I have tried selecting the words and turning italics off [it says they aren't on] then when I click italics it says its on but then it sort of freezes for a long time before not changing at all and making the button unclickable. 

Any and all help would be appreciated.

Hit the button with this symbol:

</>

That will let you see the actual HTML. You want to look for anything between these symbols:

<em> </em> or <i> </i>

Either of those symbols would be for italics. The following would be for bold:

<strong> </strong> or <b> </b>

Getting rid of those will get rid of the formatting. Anything you want formatted that way should be left between those symbols, anything you want not formatted should be not between those symbols.

You are a fantastic person and a great problem solver, I thank you for solving this issue!

I'm now having the same issue, and removing those doesn't fix the text, just leaves the <> in the text, and recreates the </b> <i> over and over. 

Quote from SparingAxis >>

I'm now having the same issue, and removing those doesn't fix the text, just leaves the <> in the text, and recreates the </b> <i> over and over. 

 
Then highlight the entire thing and “cut” it and then “paste” it into a snippet field. That will scrub all formatting from the text. Then highlight that scrubbed text and cut/paste it back in where you want it.