Error code -500 on sync from laptop

[Ackron]

I filed a bug report Sunday, but figured I'd follow up here to see if anyone else has encountered this.

I sync'd my realm to my laptop Sunday afternoon, and made a number of additions to the realm. The laptop was patched up to 1.0.4, but every time I've tried to sync my changes back to the cloud, I keep getting a "sync failed with error code -500" error on the laptop. I've gone through every topic I've put in there, and it doesn't appear as though I'm suffering from the data loss bug, but I'm completely unable to sync from my laptop now. Has anyone else encountered anything similar recently?