Allocate and post charges on vendor invoice

Hi all

I try to book a vendor invoice for multiple POs.

I go through "Account payable -> Periodic -> Maintain vendor invoices". There I select all related data and I add Charges which are billed on the vendor invoice. I allocate them to all lines.

When I look on the distributions they are allocated correctly.

Now I post the invoice. With that posting the charges are gone. They are not posted.

What happens here and how can I get rid of this behaviour?

I use AX2012 RTM