Just brought down VPN for 1k users by inserting an SFP in ASR1001-X

In prep for a new 10g internet circuit, I inserted a Cisco SFP-10G-SR= into Ten0/0/0 of our ASR1001-X. No fiber patched in, simply inserted the SFP into the slot.

Immediately after, Gi0/0/0 goes hard down which is our current 1G internet circuit. Gi0/0/0 transceiver is a Cisco GLC-LH-SMD.

This has to be a bug?

Mar 16 10:33:52.538 CDT: %TRANSCEIVER-6-INSERTED: SIP0/0: transceiver module inserted in TenGigabitEthernet0/0/0

Mar 16 10:33:53.286 CDT: %LINK-3-UPDOWN: Interface GigabitiEthernet0/0/0, changed state to down