Error 143 on importdb in IPA

Anybody know what error code 143 is on importdb? I can run the command from the command prompt and the data imports into GMDISTREL without issue. I can run other GMDISTREL files using the same PF and they load without issue using IPA. But I have a file that keeps throwing the 143 error through IPA but not when I run the importdb from the command line. Any ideas? I've been struggling with this all morning. Thanks in advance - Laura