Listview with Filter not working properly

Hello everyone,

on a fresh installed vtiger (actual master) , i've tried to create a filtered LISTVIEW on Opportunities. The filter looks like:

Amount - greater or equal - 9000

But the List ist showing ALL records. regardless of the amount.

I've also tried the other filter types. the following are not working:

less than

greater than

less or equal

greator or equal

Can anyone help me out? Best regards, Ralph