https://www.reddit.com/r/androiddev/comments/hwiffd/were_on_the_engineering_team_for_android_studio/fzsu1xc/

Reported via reddit

The custom view breaks because of the use of ResourceCompat which fails to find resources when using the preview. This throws an exception but it is not reported via the issue panel probably because it happens during the onAttachedToWindow.

WARN - er.scene.LayoutlibSceneManager - Font resource ID #0x7f070000 could not be retrieved. 
android.content.res.Resources$NotFoundException: Font resource ID #0x7f070000 could not be retrieved.
	at androidx.core.content.res.ResourcesCompat.loadFont(ResourcesCompat.java:365)
	at androidx.core.content.res.ResourcesCompat.getFont(ResourcesCompat.java:230)
	at dev.inkremental.sample.RenderableForPreview$renderable$1$1$1.invoke(RenderableForPreview.kt:29)
	at dev.inkremental.sample.RenderableForPreview$renderable$1$1$1.invoke(RenderableForPreview.kt:11)
	at dev.inkremental.KAnvilKt$bind$1.invoke(KAnvil.kt:38)
	at dev.inkremental.KAnvilKt.v(KAnvil.kt:21)
	at dev.inkremental.dsl.android.widget.TextViewKt.textView(TextView.kt:106)
	at dev.inkremental.sample.RenderableForPreview$renderable$1$1.invoke(RenderableForPreview.kt:26)
	at dev.inkremental.sample.RenderableForPreview$renderable$1$1.invoke(RenderableForPreview.kt:11)
	at dev.inkremental.KAnvilKt$bind$1.invoke(KAnvil.kt:38)
	at dev.inkremental.KAnvilKt.v(KAnvil.kt:21)
	at dev.inkremental.dsl.android.widget.FrameLayoutKt.frameLayout(FrameLayout.kt:33)
	at dev.inkremental.sample.RenderableForPreview$renderable$1.invoke(RenderableForPreview.kt:24)
	at dev.inkremental.sample.RenderableForPreview$renderable$1.invoke(RenderableForPreview.kt:11)
	at dev.inkremental.Inkremental.render(Inkremental.kt:141)
	at dev.inkremental.Inkremental.render(Inkremental.kt:130)
	at dev.inkremental.Inkremental.mount(Inkremental.kt:81)
	at dev.inkremental.RenderableView.onAttachedToWindow(RenderableView.kt:15)
	at android.view.View.dispatchAttachedToWindow(View.java:20479)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3489)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
	at android.view.AttachInfo_Accessor.setAttachInfo(AttachInfo_Accessor.java:44)
	at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:354)
	at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:435)
	at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:141)
	at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:704)
	at com.android.tools.idea.rendering.RenderTask.lambda$inflate$6(RenderTask.java:859)
	at com.android.tools.idea.rendering.RenderExecutor$runAsyncActionWithTimeout$2.run(RenderExecutor.kt:170)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)