"remove filter" option doesn't show up on Filters for a different time range


I am using a table panel and Filter menu. When I select a smaller time range (< 6 months) and filter on some fields, filter menu shows “remove filter” option. But when I change it to time range of 6 months to now (or any older time - now) for the same record it doesn’t show “remove filter” option on filter menu!

What could be the reason ?

To add to it. the data belonged to the index of 2019. When I changed the range to 2 years - now and
selected filter to remove , it says 404 and was looking for the index of 2017 (2 year old) which did not exist and gave 404.

Is this a bug ?

Can somebody please confirm , if this is a bug ?