i am not able to view all custome taxonomy term. how can i fix this?

i have created a custome taxonomy(‘centre’) and added 6 items. but wp admin showing only 2 items(as you can see below screenshot) other data not showing.

i have also checked screen options. and checked all screen options, but it is showing same result
also checked database entry in ‘wp_term table’, and and founded 6 items items there.