STATUS

They are not automatically saved. You have to do it manually by pressing the submit button. (if the mandatory screenshots are not there it won't show up in the submission queue, so you can continue to work on it later)

Paste the whole thing into Notepad occasionally, I guess is the best solution.

Rmn's ancient boomer tech also gets uppity when you add any of them fancy emojis or special symbols. It'll teach you a lesson in complacency by erasing that symbol or emoji and also everything you write after it, as I found out when I submitted my gamepage's description the other day. Luckily I had pasted it from notepad++ so I simply had to replace the symbol and try again.

Make it a habit of using an external text parser to do everything before you paste it on the site.