Code mode template, special characters

Problems with special character.

I’m editing an email in HTML mode (code mode template), I have a problem with special characters.

For example when trying to write a < (I have tried both “codes” see screenshot) it always converts back to <, and then ofc breaking the HTML.

Any ideas?

Capture

Hi, can you add the screenshot?

Its at the bottom, the % # 6 0 ; and & l t; (without spaces, because it turns to <)