Sim card swap between BB's, BB contacts affected?

I just recently upgraded to an OS7 device. While in the process of setting it up, I placed my existing sim card in the 9810. I installed App Word and it prompted me to switch device to PIN (something along those lines) and I clicked OK.

Now, switching back to my 9700, OS5, I went into App Word and it prompted me to switch PIN again and I clicked OK. Before I even put the sim card in the 9810, I backed up my BB contacts on to the SD card. I wasn't exactly sure how the PIN switch affects the phones, so I restored my BB contacts once I placed the sim card back into the 9700. It seemed to restore just fine but when I BBMed my brother, my phone said that he did not have me as a contact, so a BBM invite was sent out.

Did I do a step incorrectly? Aren't the BBM contacts supposed be transferred pretty seamlessly without sending out invites again? Do I need to send a re-invites everytime I place switch BB devices around?

Bump

Does anyone know if my swapping of the sim card between BB devices affect my bbm contacts where they will need to be invited as again?

I have found it hit and miss switching between phones and I have had similar problems. .There may be a delay for the BBID to switch the BBM info when you switch have phones. It needs to update your PIN in the system.