Hi,
Change log works -
i) If in technical settings, change log is set to 'X'
&
II) For the client, profile rec/client is set.
As both tables are there in the same client, I think -
i) Change log will only show, if you have inserted/deleted/updated records in the table. Kindly check for the 2nd table any data exists or not.
Secondly, check in package level , if anything is different.
Regards,
DPM