Hi Andre
I propose that you contact SAP for 2 reasons
a. To know the if this is really the behaviour of this Standard Extractor.
b. Since a Standard Extractor might/has been changed, I THINK they ONLY have the authorization to restore it.
Also I wish to add if you want to check what is exactly happening in your Extractor then you can go to RSA2 in your ECC system, give your Standard Extractor name and it will show the FunctionModule used for this Extractor.
Debug that FunctionModule and see what is the Functionality.
Regards
Mohammed Asif