We have DX Netops Performance Management syncing with DX Netops Spectrum.
After we delete the devices from monitored devices in Performance Management, they keep coming back into monitored devices after a few hours.
Release : 20.2
Component : IM Reporting / Admin / Configuration
Devices were rediscovered as the IPs were sent from Spectrum.
Make sure the devices are no longer in Spectrum in the IP Domain Global Collection container, you may need to search by IP address to confirm.