ID 601075 - Starting a Live Render with RenderMan that has an active Region of Interest and Interactive Denoiser set to on causes the render to freeze shortly after initialising

Problem summary
The Region of Interest value is set to 0,0,0,0 by a Live Render Update shortly after a Live Render is initialised with Renderman's Interactive Denoiser making it appear to have frozen in the monitor tab.
 
Customer reported version
Katana 6.5v6
 
Customer reported platform
Rocky 9
 
Steps to reproduce
 
1) Launch Katana with Renderman and open the Setting Up AOV's example project from under Help > Example Projects > Rendering.

2) Navigate to the PrmanGlobalStatements node and turn on interactiveDenoiser. 

3) In the Scene Explorer or Scene Graph tab under the Live Render Updates column set the /root location to Include with Children.
 
4) Next In the Monitor tab set ROI to On and Visible.
 
5) Start a Live Render and then press F to frame within the Monitor tab.
 
Expected behaviour
The Live Render initializes and renders the pixels within the Region of Interest.
 
Actual behaviour
The Live Render initializes and an update is sent setting the Region of Interest to 0,0,0,0 giving the illusion the render has paused.
 
Workaround
Perform an action that sends a Live Update, such as modifying the Region of Interest slightly, which will set the ROI value to the correct value and re-sync it with the ROI handle in the Monitor tab.
 
Reproduced by support
This bug has been reproduced in:
Katana 8.0v3 - Windows 10, Rocky 9
Katana 7.5v3 - Windows 10, Rocky 9
Katana 7.0v6 - Windows 10, Rocky 9
Katana 6.5v1 - Windows 10, CentOs 7
 
Unable to reproduce bug in:
Katana 6.0v6 - Windows 10, CentOs 7
 
Earliest version tested
Katana 6.0v6 - This issue doesn't appear in this version and has regressed