Multivalue Overlay error (PIMv4 Interface.Active)

[alexandreseitz]

Hello

My environment: ixnetwork_restpy 1.1.6 + Ixnetwork 9.10.2011.91

I am currently trying to modify some devices individually on a PIMV4 Interface stack.
To do so, I would like to use the Overlay method on the Active Multivalue of PIMV4 Interface Stack.

I have 3000 devices, and I iterate over a small range of ids [1, 3, 4, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]

The first 2 overlays work well: (and I can observe the change in the GUI)

Pim.Active.Overlay(1, False)
Pim.Active.Overlay(3, False)

but the third raise an exception:

Pim.Active.Overlay(4, False)
The requested resource  /api/v1/sessions/1/ixnetwork/multivalue/256/overlay/4  cannot be found

Is it the good manner to use Overlay ? Is there a bug?
Thanks for your feedback
Best regards