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Your filter by bool mask is failing to filter cleanly. Clear up that warning first. What the issue is isn’t clear from the screenshot. Export your workspace as an image after expanding the previews and arranging the nodes so they flow left to right, and likely we can troubleshoot that issue from there.
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The Color.Red node is returning null as you aren’t providing an input, however that node tells you the Red value of an existing color, it does not create the color red. Try a
Color Palletnode instead. -
Override in view will override the doors in the active view. If the door is not visible in this view that is not of much use. If you aren’t setting up a 3D view with all doors visible, you should look to build a filter and apply it to all your QA views (the best practice as it scales to all projects and doesn’t require rerunning the graph every time the model updates), or use an override that applies to a provided view.