Zabbix 2.5.0 - LLD Graphs Prototype Bug

I created an auto discovery template to discover network switch interfaces which contained "[M]".

It successfully discovered 4 interfaces.

I then created items to monitor TX and RX of each port. Data is being collected successfully.

I created a graph prototype to create a new graph per interface, but it is only creating one graph. It wont create a graph per discovered interface.