diff --git a/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/datatypes/maps/TypeMap.kt b/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/datatypes/maps/TypeMap.kt
index 39d4dc81f..e9542b857 100644
--- a/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/datatypes/maps/TypeMap.kt
+++ b/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/datatypes/maps/TypeMap.kt
@@ -3,28 +3,25 @@ package com.mineinabyss.geary.datatypes.maps
 import com.mineinabyss.geary.datatypes.GearyEntity
 import com.mineinabyss.geary.datatypes.Record
 import com.soywiz.kds.*
-import kotlinx.atomicfu.locks.SynchronizedObject
-import kotlinx.atomicfu.locks.synchronized
 
 public class TypeMap {
-    private val lock = SynchronizedObject()
+//    private val lock = SynchronizedObject()
     private val map: FastIntMap<Record> = FastIntMap()
 
     // We don't return nullable record to avoid boxing.
     // Accessing an entity that doesn't exist is indicative of a problem elsewhere and should be made obvious.
     @PublishedApi
-    internal fun get(entity: GearyEntity): Record = synchronized(lock) { map[entity.id.toInt()] }
+    internal fun get(entity: GearyEntity): Record = map[entity.id.toInt()]
         ?: error("Tried to access components on an entity that no longer exists (${entity.id})")
 
     @PublishedApi
-    internal fun set(entity: GearyEntity, record: Record): Unit = synchronized(lock) {
+    internal fun set(entity: GearyEntity, record: Record) {
         if (contains(entity)) error("Tried setting the record of an entity that already exists.")
         map[entity.id.toInt()] = record
     }
 
-    internal fun remove(entity: GearyEntity) = synchronized(lock) {
+    internal fun remove(entity: GearyEntity) =
         map.remove(entity.id.toInt())
-    }
 
     public operator fun contains(entity: GearyEntity): Boolean =
         map.contains(entity.id.toInt())
diff --git a/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/engine/GearyEngine.kt b/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/engine/GearyEngine.kt
index a109f20fe..85df03196 100644
--- a/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/engine/GearyEngine.kt
+++ b/geary-core/src/commonMain/kotlin/com/mineinabyss/geary/engine/GearyEngine.kt
@@ -222,7 +222,7 @@ public open class GearyEngine(override val tickDuration: Duration) : TickingEngi
         entity.apply {
             children.forEach {
                 // Remove self from the child's parents or remove the child if it no longer has parents
-                if (parents == setOf(this)) it.removeEntity(event)
+                if (it.parents == setOf(this)) it.removeEntity(event)
                 else it.removeParent(this)
             }
         }
diff --git a/geary-prefabs/src/main/kotlin/com/mineinabyss/geary/prefabs/PrefabManager.kt b/geary-prefabs/src/main/kotlin/com/mineinabyss/geary/prefabs/PrefabManager.kt
index 97e68c1e3..85297b6d0 100644
--- a/geary-prefabs/src/main/kotlin/com/mineinabyss/geary/prefabs/PrefabManager.kt
+++ b/geary-prefabs/src/main/kotlin/com/mineinabyss/geary/prefabs/PrefabManager.kt
@@ -10,6 +10,7 @@ import com.mineinabyss.geary.prefabs.configuration.components.Prefab
 import com.mineinabyss.geary.prefabs.helpers.inheritPrefabs
 import com.mineinabyss.geary.serialization.GearyEntitySerializer
 import com.mineinabyss.idofront.messaging.logError
+import com.mineinabyss.idofront.messaging.logWarn
 import okio.Path.Companion.toOkioPath
 import java.io.File
 import java.util.*
@@ -68,8 +69,8 @@ class PrefabManager : GearyContext by GearyContextKoin() {
             registerPrefab(key, entity)
             entity
         }.onFailure {
-            logError("Error deserializing prefab: $name from ${file.path}")
-            it.printStackTrace()
+            logError("Can't read prefab $name from ${file.path}:")
+            logWarn(it.toString())
         }.getOrNull()
     }
 }
diff --git a/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntity2Geary.kt b/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntity2Geary.kt
index 441b6dba2..e662d8a24 100644
--- a/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntity2Geary.kt
+++ b/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntity2Geary.kt
@@ -105,7 +105,7 @@ class BukkitEntity2Geary : Listener, GearyMCContext by GearyMCContextKoin() {
         entity.toGearyOrNull()?.removeEntity()
     }
 
-    @EventHandler(priority = EventPriority.LOWEST)
+    @EventHandler(priority = EventPriority.HIGHEST)
     fun PlayerQuitEvent.onPlayerLogout() {
         player.toGearyOrNull()?.removeEntity()
     }
diff --git a/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntityConversion.kt b/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntityConversion.kt
index 88b5c7944..0d7dfa694 100644
--- a/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntityConversion.kt
+++ b/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/access/BukkitEntityConversion.kt
@@ -4,9 +4,12 @@ import com.mineinabyss.geary.datatypes.GearyEntity
 import com.mineinabyss.geary.helpers.entity
 import com.mineinabyss.geary.papermc.globalContextMC
 import com.mineinabyss.idofront.typealiases.BukkitEntity
+import org.bukkit.entity.Player
 
-fun BukkitEntity.toGeary(): GearyEntity =
-    globalContextMC.bukkit2Geary[entityId] ?: entity { set<BukkitEntity>(this@toGeary) }
+fun BukkitEntity.toGeary(): GearyEntity {
+    if(this is Player && !isOnline) error("Tried to access Geary entity for offline player: $name")
+    return globalContextMC.bukkit2Geary[entityId] ?: entity { set<BukkitEntity>(this@toGeary) }
+}
 
 //TODO perhaps add a function literal that fires before any entity create events do
 inline fun BukkitEntity.toGeary(
diff --git a/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/engine/PaperMCEngine.kt b/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/engine/PaperMCEngine.kt
index bfcb38b56..a1bba1d02 100644
--- a/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/engine/PaperMCEngine.kt
+++ b/platforms/papermc/core/src/main/kotlin/com/mineinabyss/geary/papermc/engine/PaperMCEngine.kt
@@ -7,8 +7,8 @@ import com.mineinabyss.geary.systems.GearySystem
 import com.mineinabyss.geary.systems.TickingSystem
 import com.mineinabyss.idofront.plugin.registerEvents
 import com.mineinabyss.idofront.time.ticks
-import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.yield
 import org.bukkit.Bukkit
 import org.bukkit.NamespacedKey
 import org.bukkit.event.Listener
@@ -40,7 +40,7 @@ class PaperMCEngine(private val plugin: Plugin) : GearyEngine(tickDuration = 1.t
         launch(plugin.minecraftDispatcher) {
             while (true) {
                 tick(Bukkit.getServer().currentTick.toLong())
-                delay(tickDuration)
+                yield()
             }
         }
     }