CA UIM and CA Spectrum integration using spectrumgtw probe and some of the events from probe like Process probe is not showing in the Spectrum Event tab. 
For example ,the alerts from the process probe is showing up in Spectrum Alarms, but some of the Events are not showing with the Alarms.

UIM 8.51
spectrumgtw-8.6.6-HF2

As per Spectrum integration design, spectrum is not storing all events into Historical database. 

Example: 

1. Open event configuration from Spectrum OC Client 
2. Select event 0x063300ff (Global) 
3. select "Event Options" on right side window. 
4. There is a check box "Store Event in Historical Database". If it is enabled, it will appear in Event tab of alarm otherwise it will not appear. 

If requirement to store these events,  select it for required alarm event codes.