Hi Jordan;
I am not sure if it is the solution ,but stp is playing an important role on configurations like this. Please change your stp mode to rstp (802.1w) .Because you know it is operating so much faster than stp (802.1d). And i experience same problem with an another vendor , and fixed it with stp.
Also i suggest you to use a different vlan than default for your configuration.
Regards,
Burak.