Custom field (multi-select) not translating (WPML) with only one option checked

Hi,

I have noticed a strange behaviour where a multi-select field won’t translate only if it’s checked alone.
When multiple options are checked, everything gets translated fine, but when only one is checked the display looks different (result on the same line instead of below) and the result does not get translated by WPML even though the same one works when more are selected.

I’ll send links in private as this is on a staging site.

Best,
Marc