ERROR in MIGO, class type 001 instead of 023

[Namer]

Hello GURU's,

I face an issue in MIGO in my test system after an upgrade (EHP4 SP5 to EHP4 SP26) : 

I was used to enter batch caracteristics in MIGO using the button "classification"

And The screen below should appear : 

Unfortunatly till the Upgrade I can not save the caracteristics, and it seems because I have the value : 

Any help will be appreciate, I am lost... I did not find any differences in the customizing between both systems even in Batch Manu or Classification menu. 

Isabelle