Ghost Entity IDs in HA

I unpaired/excluded some zwave and zigbee devices from SmartThings today and brought them over to HA using the Nortek Quickstick. Almost everything paired up fine and is showing up in HA.

I confirmed the devices are gone from ST, and the old ST entity IDs aren’t in my entity panel/ list in HA.

But something seems “stuck” about the old entity IDs. When I try to reuse the old IDs, HA thinks they’re still registered. This is after several restarts of HA.

Any ideas? Thank you.