RuntimeExceptionWithAttachments thrown in IntelliJ 2023.3.x

[TravisWhip]

Exceptions are thrown when trying to Mark Nodes or Isolate Nodes.

The diagrams generated do not seem to be interactable. Marking Nodes and Isolating Nodes does not seem to have any affect on the diagram or individual nodes.

When loading a Diagram or trying to Isolating Nodes:

com.intellij.openapi.diagnostic.RuntimeExceptionWithAttachments: Read access is allowed from inside read-action (see Application.runReadAction()); see https://jb.gg/ij-platform-threading for details
Current thread: Thread[AWT-EventQueue-0,6,main] 1550078836 (EventQueue.isDispatchThread()=true)
SystemEventQueueThread: (same)
	at com.intellij.util.concurrency.ThreadingAssertions.createThreadAccessException(ThreadingAssertions.java:149)
	at com.intellij.util.concurrency.ThreadingAssertions.softAssertReadAccess(ThreadingAssertions.java:107)
	at com.intellij.openapi.application.impl.ApplicationImpl.assertReadAccessAllowed(ApplicationImpl.java:1012)
	at com.intellij.psi.impl.smartPointers.SmartPointerManagerImpl.createSmartPsiElementPointer(SmartPointerManagerImpl.java:68)
	at com.intellij.psi.impl.ElementBase$ElementIconRequest.<init>(ElementBase.java:171)
	at com.intellij.psi.impl.ElementBase$ElementIconRequest.<init>(ElementBase.java:166)
	at com.intellij.psi.impl.ElementBase.computeIcon(ElementBase.java:86)
	at com.intellij.psi.impl.ElementBase.getIcon(ElementBase.java:62)
	at ch.docksnet.rgraph.method.ReferenceNode.getIcon(ReferenceNode.java:57)
	at com.intellij.diagram.DiagramNode.getIcon(DiagramNode.java:56)
	at com.intellij.diagram.components.DiagramNodeDeferredIconsEvaluator.lambda$getUnevaluatedIcon$0(DiagramNodeDeferredIconsEvaluator.java:59)
	at com.intellij.util.SlowOperations.allowSlowOperations(SlowOperations.java:195)
	at com.intellij.diagram.components.DiagramNodeDeferredIconsEvaluator.getUnevaluatedIcon(DiagramNodeDeferredIconsEvaluator.java:59)
	at com.intellij.diagram.components.DiagramNodeDeferredIconsEvaluator.registerEvaluationOrGetReadyIcon(DiagramNodeDeferredIconsEvaluator.java:66)
	at com.intellij.diagram.components.DiagramNodeHeaderComponent.createLabel(DiagramNodeHeaderComponent.java:104)
	at com.intellij.diagram.components.DiagramNodeHeaderComponent.<init>(DiagramNodeHeaderComponent.java:47)
	at com.intellij.diagram.components.DiagramNodeContainer.<init>(DiagramNodeContainer.java:144)
	at com.intellij.diagram.extras.DiagramExtras.createNodeComponent(DiagramExtras.java:127)
	at com.intellij.uml.core.renderers.DefaultUmlRenderer.tuneNode(DefaultUmlRenderer.java:88)
	at com.intellij.uml.core.renderers.DefaultUmlRenderer.tuneNode(DefaultUmlRenderer.java:79)
	at com.intellij.openapi.graph.builder.renderer.AbstractColoredNodeCellRenderer.createNodeRealizerComponent(AbstractColoredNodeCellRenderer.java:56)
	at com.intellij.uml.core.renderers.DefaultUmlRenderer.createNodeRealizerComponent(DefaultUmlRenderer.java:74)
	at com.intellij.openapi.graph.builder.renderer.BasicNodeCellRenderer$MyRealizerComponents.lambda$getOrCompute$0(BasicNodeCellRenderer.java:113)
	at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1220)
	at com.intellij.openapi.graph.builder.renderer.BasicNodeCellRenderer$MyRealizerComponents.getOrCompute(BasicNodeCellRenderer.java:111)
	at com.intellij.openapi.graph.builder.renderer.BasicNodeCellRenderer.getNodeCellRendererComponent(BasicNodeCellRenderer.java:65)
	at com.intellij.openapi.graph.impl.GraphBase$NodeCellRendererProxy.getNodeCellRendererComponent(GraphBase.java:457)
	at a.a.Fk.y(Unknown Source)
	at com.intellij.openapi.graph.impl.view.FastNodeCellRendererPainter.paintNode(FastNodeCellRendererPainter.java:40)
	at a.a.Fd.y(Unknown Source)
	at a.a.Fd.a(Unknown Source)
	at a.a.rX.paint(Unknown Source)
	at a.a.r0.a(Unknown Source)
	at a.a.ap.y(Unknown Source)
	at a.a.r0.y(Unknown Source)
	at a.a.r0.a(Unknown Source)
	at a.a.Ps.r(Unknown Source)
	at a.a.Ps.paintComponent(Unknown Source)
	at java.desktop/javax.swing.JComponent.paint(JComponent.java:1115)
	at java.desktop/javax.swing.JComponent.paintToOffscreen(JComponent.java:5312)
	at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBufferedImpl(RepaintManager.java:1668)
	at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1643)
	at java.desktop/javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1580)
	at java.desktop/javax.swing.RepaintManager.paint(RepaintManager.java:1347)
	at java.desktop/javax.swing.JComponent._paintImmediately(JComponent.java:5260)
	at java.desktop/javax.swing.JComponent.paintImmediately(JComponent.java:5070)
	at java.desktop/javax.swing.RepaintManager$4.run(RepaintManager.java:882)
	at java.desktop/javax.swing.RepaintManager$4.run(RepaintManager.java:865)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:865)
	at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:838)
	at java.desktop/javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:787)
	at java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1909)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:792)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:739)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:733)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:761)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:695)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$12(IdeEventQueue.kt:589)
	at com.intellij.openapi.application.impl.RwLockHolder.runWithoutImplicitRead(RwLockHolder.kt:44)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:589)
	at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:72)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:355)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:354)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:793)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:354)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:349)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1014)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:106)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1014)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$7(IdeEventQueue.kt:349)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:386)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)