Dropdown multiselect not working correctly on existing form

Dropdown multiselect is preventing me from creating rules and publishing an existing form, here is how a simple rule looks when dropdown multiselect is working correctly:
(removed as I am capped to putting 1 image)
This is how it looks on my existing form, it doesn’t give me a list of values, rather it just asks me to input my own value:
(removed as I am capped to putting 1 image)
Here is what happens when I try to edit that rule:
(removed as I am capped to putting 1 image)
Here is what happens when I try to publish with these fields in my form:

Hi there, could you please share the specific form this is encountered?