[Observium] Fortigate multiple CPU's not showing

Hi

We have lots of fortigates monitored in observium (running rolling version 17.3.8418) and most of them have multiple CPU's (depends which model depends on what CPUs it has). Observium only shows 1 CPU but when looking at the fortigate we can see there are numerous CPU's. (eg. the one ive shown below is a Fortigate 1000D which has 8 CPU's but observium only shows 1).

Is this fixable so that observium shows all the CPU's?

Observium screenshot:

Fortigate screenshot:

Many Thanks

Rich