Unable to Check in C2V

I've seen quite a few posts and topics regarding this error: "One or more of the C2V files are invalid or empty, or relate to a non-existent Batch Code." but no matter what I try I am unable to check in C2V files through SentinelEMS.

I have a server reporting Clone Detected that I'd like to re-license without ending up with duplicate licenses (one new good license and one bad clone detected license). So I generated a new C2V in order to create a Clone Clearing V2C, but I keep getting the error when trying to check it in to do so.

I tried generating C2Vs from multiple different machines, and edited them with a hex editor to remove trailing characters as shown here:

http://sentineltechsupport.gemalto.com/2014/12/one-or-more-of-the-c2v-files-are-invalid-or-empty-or-relate-to-a-non-existent-batch-while-checking-in-c2v-in-sentinel-ems/

but I have not been able to check in a single one.