Error when trying to convert Filemaker 12 file to json

[ElPincheTopo]

Hi,
Thanks a lot for making this tool, it's amazing!

I'm running into the following issue when running the fmp2json command:

Version: File Maker Pro 12.0
 **** UNRECOGNIZED CODE 0x27 @ [6] *****
Error code: 11

I'm running v0.2.1 on ubuntu 18.04 amd64.

I read on #3 that you suggested using fmpdump to get more information about where this is failing but I'm getting the same when running fmpdump that I did with fmp2json. Uncommenting the code that you suggested in #3 gives me this error:

Version: File Maker Pro 12.0
 **** UNRECOGNIZED CODE 0x27 @ [6] *****
ERROR processing block, reporting partial results...
== 0 -> [ BLOCK 2 ] -> 3 ==
        [ Len: 4076 ]
-- data simple (0x1B): [1] --
Error code: 11

I can open the file in Filemaker Pro 19 with no problems. The database is password protected but I don't think that matters as it is working for other files that are also password protected.
I can't upload the file because it has sensitive information but I might be able to upload just the data where the process is failing if that would be useful.

Any help would be appreciated!