diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/particle/ParticleRenderer.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/particle/ParticleRenderer.kt
index d70945173..bc27c4d52 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/particle/ParticleRenderer.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/particle/ParticleRenderer.kt
@@ -162,10 +162,13 @@ class ParticleRenderer(
         translucentMesh = ParticleMesh(renderWindow, translucentMesh.data)
 
 
-        particlesLock.acquire()
+        particlesLock.lock()
         particleQueueLock.acquire()
         particles += particleQueue
         particleQueueLock.release()
+        particlesLock.unlock()
+
+        particlesLock.acquire()
 
         val time = KUtil.time
         for (particle in particles) {
diff --git a/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorker.kt b/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorker.kt
index 54b2b0ff3..2f5167a23 100644
--- a/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorker.kt
+++ b/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorker.kt
@@ -14,7 +14,7 @@ object TimeWorker {
             while (true) {
                 val currentTime = KUtil.time
                 for (task in TASKS.toSynchronizedSet()) {
-                    if (task.getsExecuted) {
+                    if (task.executing) {
                         continue
                     }
                     if (currentTime - task.lastExecution <= task.interval) {
@@ -24,7 +24,7 @@ object TimeWorker {
                         if (!task.lock.tryLock(100L, TimeUnit.MILLISECONDS)) {
                             return@execute
                         }
-                        if (task.getsExecuted) {
+                        if (task.executing) {
                             task.lock.unlock()
                             return@execute
                         }
@@ -32,10 +32,14 @@ object TimeWorker {
                             task.lock.unlock()
                             return@execute
                         }
-                        task.getsExecuted = true
-                        task.runnable.run()
+                        task.executing = true
+                        try {
+                            task.runnable.run()
+                        } catch (exception: Exception) {
+                            exception.printStackTrace()
+                        }
                         task.lastExecution = currentTime
-                        task.getsExecuted = false
+                        task.executing = false
                         task.lock.unlock()
                     }
                     if (task.runOnce) {
diff --git a/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorkerTask.kt b/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorkerTask.kt
index cdbc08326..309dbabbd 100644
--- a/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorkerTask.kt
+++ b/src/main/java/de/bixilon/minosoft/util/task/time/TimeWorkerTask.kt
@@ -22,6 +22,6 @@ data class TimeWorkerTask(
     val runnable: Runnable,
 ) {
     val lock = ReentrantLock()
-    var getsExecuted: Boolean = false
+    var executing: Boolean = false
     var lastExecution: Long = 0L
 }