Bug with Rich Text Box?

Hey, I’m working on a custom form.

Many functions that work with the input box cannot be used with the rich textbox.

Here some examples, that work for the inputbox, but not for the rich textbox:

  1. let RichBox = $w( "# richTextBox1 " ).required = true ; //does not work

  2. $w( "# richTextBox1 " ).valid // the box is never valid

  3. $w( "# richTextBox1 " ).style.borderColor = “rgba(255,0,0,0.5)” ; // function does not exist

The problem is, that I can’t set the richbox required/valid and I can’t border the box red.

Is this a bug in wix or are my codes all wrong ?