I recently installed the Rider plugin (v5.3.0.2) on Rider 2023.3.4 and saw the error below twice this afternoon. I am on Windows 10 as well.
I did experiment with moving the NCrunch window around the IDE, floating, docked/undocked, etc. which might have triggered it given the description of the error message.
Code:
Must be executed on UI thread or background threads with special permissions
java.lang.IllegalStateException: |E| Wrong thread RdSignal: `RiderDebugRunner.DebuggerWorkerModel.detachTarget`
at com.jetbrains.rdclient.protocol.RdDispatcher.assertThread(RdDispatcher.kt:69)
at com.jetbrains.rd.framework.base.RdReactiveBase.assertThreading(RdReactiveBase.kt:28)
at com.jetbrains.rd.framework.impl.RdSignal.fire(RdSignal.kt:45)
at com.jetbrains.rd.util.reactive.InterfacesKt.fire(Interfaces.kt:163)
at com.jetbrains.rider.debugger.DebuggerWorkerProcessHandlerBase.detachProcessImpl(DebuggerWorkerProcessHandlerBase.kt:41)
at com.jetbrains.rider.debugger.DebuggerWorkerProcessHandler.detachProcessImpl(DebuggerWorkerProcessHandler.kt:148)
at com.intellij.execution.process.ProcessHandler.lambda$detachProcess$1(ProcessHandler.java:140)
at com.intellij.execution.process.ProcessHandler$TasksRunner.execute(ProcessHandler.java:322)
at com.intellij.execution.process.ProcessHandler.detachProcess(ProcessHandler.java:137)
at com.remco.software.ncrunch.editor.EditorIntegrationService$detachFromProcess$1$1.invoke(EditorIntegrationService.kt:106)
at com.remco.software.ncrunch.editor.EditorIntegrationService$detachFromProcess$1$1.invoke(EditorIntegrationService.kt:104)
at com.remco.software.ncrunch.ErrorService$Companion.doWithErrorHandling(ErrorService.kt:44)
at com.remco.software.ncrunch.editor.EditorIntegrationService$detachFromProcess$1.invokeSuspend(EditorIntegrationService.kt:104)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:108)
at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:115)
at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:103)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:584)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:793)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:697)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:684)
