TDMS transfers Materials, but MARC table is empty

After creating an empty shell using cleint copy, we are trying to copy Materials from one client to another using TDMS. Interestingly, it succeeds in copying all the Materials Tables like MARA,MAKT,MARD etc but the Plant level table MARC is empty even though there are several thousand records that need to be copied over.

We repeated the experiment twice and we get the same results.

Also interestingly, other lower Plant level data like Batches, Variants are copied over successfully. This is surpising as the Plant Level table MARC is empty and my expectations are that  the dependent next  plant level tables should be empty.

Did anyone run into this problem before? If so what was the solution?

Thanks in advance.

Vikram Reddy