Hummingbird Networks Brand Compatible for Cisco Meraki SFP 10G LRM Module MA-SFP-10GB-LRM

I purchased 2 of these for testing purposes. They don't talk to the cisco SFP's very well, but when I replaced the cisco SFP's on both ends so the Hummingbird SFP's were talking to each other, it got rid of my CRC errors.