Specifically i have not found a solution for this issue. But this error also occurs during O4G1 due to the non availability of the batch stock. For that SAP has given a correction note.
Note 517380 - TD Coll. Note - MCHA and MCHB checks do not allow load.conf.
Please check this note. you can raise an OSS message to SAP asking for a resolution.
One solution that i can propose is to allow negative stock posting for a particular valuation area/storage location combination. That should avoid the error message.
Regards,