Tell us what you are trying to do?
I have some categories I would like to translate (category slug, and name) but there are also some custom fields created with CMB2, that I do not want to translate, because this custom fields were created for the category color, and catregory image, and they are the same for all the languages.
I have searched on WPML > Settings, and I can see that there is a section "Custom Term Meta Translation". All my category custom fields appear on that section, but they are by default selected as "Don't translate". I don't understand why if this fields are as "Don't translate" tey appear editable on the different lannguages. Please see images attached. I would expect this fields to not be translatable, and hence do not apear on my translation languages (only in english wich is my default language).
Is there any documentation that you are following?
nope
The screenshot shows that you're editing the translated categories manually so it's expected to see the fields there. WPML can't hide those fields from the category editing screen.
If you want those fields to have the same value across languages, you need to switch them to the "Copy" option instead of "Don't Translate".