Steps to Reproduce
When any/admin or user is creating a post under Un-Category (or say, no- category), the button to add/tag the location isn’t available. It happens 9 out of 10 times.
But 5 out of 10, if re-edit the same post after some time, the button appears.
Although the website’s most posts are in Hindi, you can create a post in your fav language and check.
You can see the screen shots here: