ID 533539 - During a Live Render when new Arnold lights are created the active Live Render is not updated to include them

Problem summary
During a Live Render when new Arnold lights are created the active Live Render is not updated to include them.
 
Customer reported version
Katana 5.0v2
 
Customer reported platform
N/A
 
Steps to reproduce
 
1)  Open Katana and load the Secondary Images (AOVs) via Help > Example Projects, select Open for Arnold.

2)  Expand the Scene graph and on the root location, right click the Live Rendering Updates box and select Included with Children.

3)  Start a Live Render by right clicking the Render node and selecting Live Render.
 
4)  Navigate to the GafferThree node in the Node Graph tab and assign the Edit flag.

5)  Create a new Arnold Point Light and transform it to the centre of the scene, then edit the Int value to 15000.
 
Expected behaviour
The new Arnold light appears in the active Live Render
 
Actual behaviour
The new Arnold light does not appear in the active Live Render and a new Live Render must be requested to include it.
 
Workaround
Unknown.
 
Reproduced by support
This bug has been reproduced in:
KtoA 4.1.5.0 - Katana 6.0v1 - Windows 10, CentOS 7
KtoA 4.1.5.0 - Katana 4.5v1 - Windows 10, CentOS 7
KtoA 4.1.3.0 - Katana 4.5v1 - Windows 10, CentOS 7
 
Earliest version tested
Katana 4.5v1- This issue appears to be in KtoA