Inconsistent behavior in list view with search and page size

Inconsistent behavior in list view with search and page size

Hi

List view , i do a search get some results, change page size at the top (see red circle on attached screen shot)

Select 10 , 20, 30 40 all good

Select 50 and the "Page Size" Option vanishes

go to the bottom and select 75, 100, 200 it comes back ..

Just the option 50 has the issue

Must be it is i hate "50" at Zoho day