I created a custom post type with a custom taxonomy attached to it.
Also created a select dropdown Taxonomy Field that displayes all the categories created for the custom taxonomy. Once selected and you pressed update/save. It doesnt store the value you select. Instead it falls back to a null value.
This functionality does work on a page template. It only seems to fail on a custom taxonomy.
Any idea how to fix this?
try to look if the post is translate in every language that you have, i had also this mistake , with the combination on Types / ACF and polylang plugins