@Ubaidullah Shuaib I have tried to follow the steps to add a list and it seems to work as expected. Basically, I have tried to create a new list with values with Enter and then saved the list. Here is a screen recording of my test list.
Hope this helps!!
If this answers your query, do click Accept Answer
and Yes
for was this answer helpful. And, if you have any further query do let us know.