Cant add second Insteon device to HA

I’m starting to move my old home automation devices to Home assistant. I have lots of Insteon devices. I want to do this slowly, a device at a time so I purchased a PLM for HA.

I was able to install the Insteon Integration, able to add the modem and was able to remove a insteon device from my old automation system and add it to HA successfully.

When I try to add my third device I get the below message. This is even before I identify the address of this third insteon device. HA doesn’t want to let me add a third device it seems.

Anyone have any idea whats going on here?

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