HP Comware Switch - Aggregation with single interface?

Question to the layer 2 experts.

Knocked one of our core switches out by adding a single interface to a vlan.

After adding the interface to the vlan the switch stopped operating instantly.

After rebooting I checked the config and saw that this interface is the single member of an aggregation. I think this doesn’t make any sense… could the different vlan membership of aggregation and interface the reason of the error?