Encryption library - can't decode old values despite not changing encryption key

[eluser]mattpointblank[/eluser]
The plot thickens!

Since determining that the remote server seems to be generating different hashes, I decided to regenerate all of them on the remote site for consistency.

1. I duplicated my encrypted table and decrypted all of it locally.
2. Checked the table and all of the data was there in plain text again.
3. On the remote site I then encrypted all of the data again
4. Checked the table, everything seems to be encrypted
5. Tried decrypting the data on the remote site, it all comes up like '������X�G94�'.

What's going on?!