CO11N Activity Types do not update

Hi Gurus,

we are using a custom confirmation profile for CO11N. When entering the yield quantity, activities like "setup", "machine" or "labor" are not updated by the system. We first have to click "Actual Data" to get the values for the activity types. When we adjust the yield quantity from let's say "10 PC" to "5 PC", the values do not update and remain the same. The profile "SAP_STANDARD" (CORUPROF parameter "null") shows the right behaviour (the system immediately updates activities when entering/changing quantities). We need this behaviour for our custom profile.

These are the settings we made in SPRO so far, any ideas what's missing?

Thanks in advance!