diff --git a/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/job/StatusBackend.kt b/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/job/StatusBackend.kt
index 105f99aab..9dfdeedb8 100644
--- a/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/job/StatusBackend.kt
+++ b/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/job/StatusBackend.kt
@@ -2,21 +2,22 @@ package org.worldcubeassociation.tnoodle.server.job
 
 import io.ktor.websocket.*
 import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
 
 sealed class StatusBackend {
-    abstract suspend fun onProgress(worker: String)
+    abstract fun onProgress(worker: String)
 
     class JobRegistry(val jobId: Int) : StatusBackend() {
-        override suspend fun onProgress(worker: String) = JobSchedulingHandler.registerProgress(jobId, worker)
+        override fun onProgress(worker: String) = JobSchedulingHandler.registerProgress(jobId, worker)
     }
 
-    data object NoOp : StatusBackend() {
-        override suspend fun onProgress(worker: String) {}
+    object NoOp : StatusBackend() {
+        override fun onProgress(worker: String) {}
     }
 
     class Websocket(val socket: WebSocketSession) : StatusBackend(), CoroutineScope by socket {
-        override suspend fun onProgress(worker: String) {
-            socket.send(worker)
+        override fun onProgress(worker: String) {
+            launch { socket.send(worker) }
         }
     }
 }
diff --git a/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/routing/WcifHandler.kt b/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/routing/WcifHandler.kt
index e8b710860..9e9b31c2b 100644
--- a/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/routing/WcifHandler.kt
+++ b/server/src/main/kotlin/org/worldcubeassociation/tnoodle/server/routing/WcifHandler.kt
@@ -5,7 +5,6 @@ import io.ktor.server.application.*
 import io.ktor.server.request.*
 import io.ktor.server.routing.*
 import io.ktor.websocket.*
-import kotlinx.coroutines.runBlocking
 import kotlinx.serialization.encodeToString
 import org.worldcubeassociation.tnoodle.server.RouteHandler
 import org.worldcubeassociation.tnoodle.server.serial.JsonConfig
@@ -54,7 +53,7 @@ class WcifHandler(val environmentConfig: ServerEnvironmentConfig) : RouteHandler
 
         override suspend fun ScramblingJobData.compute(statusBackend: StatusBackend): Pair<ContentType, ByteArray> {
             val wcif = WCIFScrambleMatcher.fillScrambleSetsAsync(request.wcif) { evt, _ ->
-                runBlocking { statusBackend.onProgress(evt.id) }
+                statusBackend.onProgress(evt.id)
             }
 
             return scrambledToResult(this, wcif, statusBackend)