diff --git a/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt b/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt
index ec7e61e95..9eb76857e 100644
--- a/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt
+++ b/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt
@@ -431,6 +431,8 @@ object IngameRenderer : Disposable {
     fun requestScreencap() {
         screencapRequested = true
         screencapBusy = true
+        printdbg(this, "requestScreencap called from:")
+        printStackTrace(this)
     }
 
     private fun drawToRGB(
diff --git a/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt b/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt
index c71b13800..1f20e7e38 100644
--- a/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt
+++ b/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt
@@ -880,9 +880,15 @@ open class TerrarumIngame(batch: FlippingSpriteBatch) : IngameInstance(batch) {
 
         if ((!paused && !App.isScreenshotRequested()) && newWorldLoadedLatch) newWorldLoadedLatch = false
 
-        if (saveRequested != null) {
-            doForceSave(saveRequested!!)
-            saveRequested = null
+        if (saveRequested) {
+            saveRequested = false
+            doForceSave()
+        }
+
+        if (doThingsAfterSave) {
+            saveRequested = false
+            doThingsAfterSave = false
+            saveCallback!!()
         }
     }
 
@@ -920,22 +926,25 @@ open class TerrarumIngame(batch: FlippingSpriteBatch) : IngameInstance(batch) {
         )
     }
 
-    private var saveRequested: (() -> Unit)? = null
+    private var saveRequested = false
+    private var saveCallback: (() -> Unit)? = null
+    private var doThingsAfterSave = false
 
     override fun requestForceSave(callback: () -> Unit) {
-        saveRequested = callback
+        saveCallback = callback
+        saveRequested = true
     }
 
-    internal fun doForceSave(callback: () -> Unit) {
+    internal fun doForceSave() {
         // TODO show appropriate UI
-        
+
         saveTheGame({ // onSuccessful
             System.gc()
             autosaveTimer = 0f
 
             // TODO hide appropriate UI
 
-            callback()
+            doThingsAfterSave = true
         }, { // onError
             // TODO show failure message
 
diff --git a/src/net/torvald/terrarum/modulebasegame/gameactors/FixtureWorldPortal.kt b/src/net/torvald/terrarum/modulebasegame/gameactors/FixtureWorldPortal.kt
index 7db163c0d..6a13f192a 100644
--- a/src/net/torvald/terrarum/modulebasegame/gameactors/FixtureWorldPortal.kt
+++ b/src/net/torvald/terrarum/modulebasegame/gameactors/FixtureWorldPortal.kt
@@ -78,9 +78,10 @@ class FixtureWorldPortal : Electric {
             val jobAfterSave: () -> Unit
             if (it.worldDiskToLoad != null) {
                 UILoadGovernor.worldDisk = it.worldDiskToLoad
-                UILoadGovernor.playerDisk = App.savegamePlayers[player.uuid]!!.getBaseFile()
+                UILoadGovernor.playerDisk = App.savegamePlayers[player.uuid]!!.files[0]
                 jobAfterSave = {
-                    LoadSavegame(UILoadGovernor.worldDisk!!, UILoadGovernor.playerDisk)
+                    UILoadGovernor.playerDisk!!.rebuild()
+                    LoadSavegame(UILoadGovernor.playerDisk!!, UILoadGovernor.worldDisk!!)
                 }
             }
             // create new
diff --git a/src/net/torvald/terrarum/modulebasegame/serialise/PlayerSavingThread.kt b/src/net/torvald/terrarum/modulebasegame/serialise/PlayerSavingThread.kt
index cff3aa675..e51dc9fe0 100644
--- a/src/net/torvald/terrarum/modulebasegame/serialise/PlayerSavingThread.kt
+++ b/src/net/torvald/terrarum/modulebasegame/serialise/PlayerSavingThread.kt
@@ -57,6 +57,7 @@ class PlayerSavingThread(
         val gzout = GZIPOutputStream(tgaout)
         PixmapIO2._writeTGA(gzout, IngameRenderer.fboRGBexport, true, true)
         IngameRenderer.fboRGBexport.dispose()
+//        App.disposables.add(IngameRenderer.fboRGBexport)
         val thumbContent = EntryFile(tgaout.toByteArray64())
         val thumb =
             DiskEntry(VDFileID.PLAYER_SCREENSHOT, VDFileID.ROOT, ingame.world.creationTime, time_t, thumbContent)
diff --git a/src/net/torvald/terrarum/modulebasegame/serialise/WriteActor.kt b/src/net/torvald/terrarum/modulebasegame/serialise/WriteActor.kt
index 13a49b37b..f2330f849 100644
--- a/src/net/torvald/terrarum/modulebasegame/serialise/WriteActor.kt
+++ b/src/net/torvald/terrarum/modulebasegame/serialise/WriteActor.kt
@@ -151,8 +151,16 @@ object ReadPlayer {
 object ReadActor {
 
     operator fun invoke(disk: SimpleFileSystem, dataStream: Reader): Actor =
-        Common.jsoner.fromJson<Actor?>(null, dataStream).also {
-            fillInDetails(disk, it)
+        try {
+            Common.jsoner.fromJson<Actor?>(null, dataStream).also {
+                fillInDetails(disk, it)
+            }
+        }
+        catch (e: ClassCastException) {
+            System.err.println(e.message)
+            System.err.println("The JSON:")
+            System.err.println(dataStream.readText())
+            throw e
         }
 
     private fun fillInDetails(disk: SimpleFileSystem, actor: Actor) {
diff --git a/src/net/torvald/terrarum/modulebasegame/ui/UIWorldPortalListing.kt b/src/net/torvald/terrarum/modulebasegame/ui/UIWorldPortalListing.kt
index e50052f33..9a01cabd9 100644
--- a/src/net/torvald/terrarum/modulebasegame/ui/UIWorldPortalListing.kt
+++ b/src/net/torvald/terrarum/modulebasegame/ui/UIWorldPortalListing.kt
@@ -191,6 +191,8 @@ class UIWorldPortalListing(val full: UIWorldPortal) : UICanvas() {
             var h = 0
             var thumb: TextureRegion? = null
 
+            disk.rebuild()
+
             JsonFetcher.readFromJsonString(ByteArray64Reader(disk!!.requestFile(-1)!!.contents.getContent() as ByteArray64, Common.CHARSET)).let {
                 JsonFetcher.forEachSiblings(it) { name, value ->
                     if (name == "width") w = value.asInt()
diff --git a/src/net/torvald/terrarum/savegame/DiskSkimmer.kt b/src/net/torvald/terrarum/savegame/DiskSkimmer.kt
index 674e802c8..134d7d9a0 100644
--- a/src/net/torvald/terrarum/savegame/DiskSkimmer.kt
+++ b/src/net/torvald/terrarum/savegame/DiskSkimmer.kt
@@ -221,7 +221,7 @@ removefile:
                         fa.read(4).toIntBig().toLong()
                     }
                     DiskEntry.SYMLINK -> 8L
-                    else -> throw UnsupportedOperationException("Unsupported entry type: $fileFlag") // FIXME no support for compressed file
+                    else -> throw UnsupportedOperationException("Unsupported entry type: $fileFlag for entryID $entryID at offset $offset") // FIXME no support for compressed file
                 }
 
 
@@ -251,7 +251,7 @@ removefile:
 
                         EntrySymlink(target)
                     }
-                    else -> throw UnsupportedOperationException("Unsupported entry type: $fileFlag") // FIXME no support for compressed file
+                    else -> throw UnsupportedOperationException("Unsupported entry type: $fileFlag for entryID $entryID at offset $offset") // FIXME no support for compressed file
                 }
 
                 return DiskEntry(entryID, parent, creationTime, modifyTime, entryContent)