FortiSwitch - Upgrading from 7.4.6 to 7.6.1

Hey all,

Curious is anyone else is encountering this. After successfully upgrading from 7.4.6 to 7.6.1 (Recommended pairing with FortiOS 7.4.8) I can no longer SSH into my newly upgraded Fortiswitch. This has happened on multiple switches in different locations, so for now I've held off on upgrading any additional switches.

I get an error stating "Unable to negotiate with [switch IP] no matching host key type found. Their offer: ". [blank field after offer].

To correct, I consoled into the affected switch and ran command "execute ssh-regen-keys" which is simple enough but presents an inconvenient problem if I don't have physical access to the switch, which is the case for 10+ switches in our environment.

Surely this cannot be the expected upgrade process. Anyone have a workaround or recommended course of action?