Do to the Bug issue template being broken I am trying to submmit my issue this way

Natron 2.4.1

Windows 10

RAM: 23.8 GB
CPU: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
GPU 0: Intel(R) UHD Graphics 630
GPU 1: NVIDIA GeForce GTX 1660 Ti with Max-Q Design

With the file colorspace set to somthing else as output colorspace, using aces_1.2 ocio config. Viewing a multilayer OpenEXR generated by Blenders file output node with three layers: Image.RGBA, AO.RGBA, Emit.RGBA. Display a Layer different the one selected as output layer

No matter how I change the Layer in the Viewer1 only the layer selected as output layer in the Reader1 is displayed. If file colourspace is == output colourspace this problem vanishes.

0. Download aces_1.2 https://github.com/colour-science/OpenColorIO-Configs/tree/feature/aces-1.2-config/aces_1.2
1. Start Natron
2. In Prefrences -> Color Managment select as OpenColorIO configuration Custom configuration and as Custome OpenColorIO configuration file selected aces_1.2/config.ocio
3. Run Project natron_problem.zip
4. Make sure exr is loaded properly in both Read nodes
5. Make sure in node Read1 File colourspaces and Output colourspaces are set to ACES/ACES - ACEScg and Output layer is set to AO.RGBA
6. Make sure in node Read1_2 File colourspaces is set to ACES/ACES - ACEScg and output colourspace is set to ACES/ACES ACES2065-1 and Output layer is set to AO.RGBA
7. Make sure Viewer1 Layer is set to I
   mage.RGBA
   
8. View Read1 node and observe Image.RGBA being properly displayed, colourful image
9. View Read1_2 node and observe, even though Viewer1 Layer is till set to Image.RGBA, how AO.RGBA, Grayscale image, is displayed.
10. Wounder why??