GDR2 Messed up MMS?

[iop777]

Hey guys. I just updated my unlocked Lumia 520 on the Bell network to GDR2/Amber the other day and ever since I can't open or send picture/video messages. I had no problems prior to the update so it's weird. Everything else works fine. Any ideas on a fix?

 

[rdubmu]

You might need to re-add in your APN settings