Batch Input to FB01 transaction

Hi all

I have a problem with a batch input to FB01.

Some data is not passed(for example, amount) to the second position but to the first position it is passed.

While debugging, I can see that data is passed correctly to BDC structure.

Any ideas of what the issue can be?

Can't use BAPI or other standard reports in this case...

Thanks

Kind regards,

Manuel