All UIM alarms are shown under Main Location Server (MLS) in Spectrum instead of the Distributed SpectroSERVER (DSS) systems where they belong.
Any Spectrum version
1. Selected the UIMAdmin model in MLS
2. Under Attributes tab selected SBG_AlertForwardingEnabled
3. Set the SBG_AlertForwardingEnabled attribute to Yes
Now the alarms are shown in their respective landscapes.