Majority of the devices are synchronizing with CAPC but a few are not.
The devices do not appear in CAPC and searching for them by IP or name returns nothing.
Performing a full synchronization (Spectrum data source) does not help.
DX NetOps 20.2
On Spectrum One-Click go to the group that has the device.
On the right window all devices associated with the group are displayed.
Select the device that is missing.
Right-click it and select Add To then select Global Collection(s)...
At the next window you will see the "Is a member of" window and that is empty.
Select the global collection from the list, the global collection name should now appear under "Is a member of" and click OK.
If required then repeat the steps for other devices.
Perform a full resync for the Spectrum data source.
Once the synchronization has finished you should now see the devices in CAPC.