Problems with reimporting model

Context: Sneak Preview II / Web Dynpro Project:

I try to make a reimport of the model, to add another function (BAPI_BANK_GETDETAIL) to an already existing one (BAPI_BANK_GETLIST). Everything seems to be alright on the different wizard pages with a reasonable summary of the things which have to be generated on the last page.

But after pressing Finish nothing is actually generated. Are there any additional steps to take ?