diff --git a/src/net/torvald/terrarum/ReferencingRanges.kt b/src/net/torvald/terrarum/ReferencingRanges.kt
index 516e77077..a32a1b531 100644
--- a/src/net/torvald/terrarum/ReferencingRanges.kt
+++ b/src/net/torvald/terrarum/ReferencingRanges.kt
@@ -19,15 +19,16 @@ object ReferencingRanges {
     val ACTORS_MIDTOP  = 0x5000_0000..0x5FFE_FFFF // Special (e.g. weapon swung, bullets, dropped item, particles)
     val ACTORS_FRONT   = 0x6000_0000..0x6FFE_FFFF // Rendered front (e.g. fake tile)
 
+    val ACTORS_OVERLAY = 0x7001_0000..0x7FFE_FFFF // Rendered as screen overlay, not affected by light nor environment overlays
+
     // IDs doesn't effect the render order at all, but we're kinda enforcing these ID ranging.
     // However, these two wire-related actor will break the rule. But as we want them to render on top of others
     // in the same render orders, we're giveng them relatively high IDs for them.
     val ACTORS_WIRES   = 0x7FFF_C000..0x7FFF_EFFF // Rendered front--wires
-    val ACTORS_WIRES_HELPER = 0x7FFF_F000..0x7FFF_FF00 // Rendered overlay--wiring port icons and logic gates
+    val ACTORS_WIRES_HELPER = 0x7FFF_F000..0x7FFF_FEFF // Rendered overlay--wiring port icons and logic gates
 
-    val ACTORS_OVERLAY = 0x7001_0000..0x7FFE_FFFF // Rendered as screen overlay, not affected by light nor environment overlays
+    val ACTORS_INTERNAL_USE = 0x7FFF_FF00..0x7FFF_FFFF // Actor ID 0x7FFF_FFFF is pre-assigned to the block cursor!
 
-    // Actor ID 0x7FFF_FFFF is pre-assigned to the block cursor!
 
     val PREFIX_DYNAMICITEM = "dyn"
     val PREFIX_ACTORITEM = "actor"
diff --git a/src/net/torvald/terrarum/gameactors/BlockMarkerActor.kt b/src/net/torvald/terrarum/gameactors/BlockMarkerActor.kt
index c5ccde0b2..df4f9afff 100644
--- a/src/net/torvald/terrarum/gameactors/BlockMarkerActor.kt
+++ b/src/net/torvald/terrarum/gameactors/BlockMarkerActor.kt
@@ -5,16 +5,17 @@ import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import net.torvald.spriteanimation.SpriteAnimation
 import net.torvald.terrarum.App
 import net.torvald.terrarum.CommonResourcePool
-import net.torvald.terrarum.ReferencingRanges
 import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZED
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
+import kotlin.math.floor
 
 class BlockMarkerActor : ActorWithBody(Actor.RenderOrder.OVERLAY, physProp = PhysProperties.MOBILE_OBJECT) {
 
     private val defaultSize = 16.0
 
-    override var referenceID: ActorID = ReferencingRanges.ACTORS_OVERLAY.last // custom refID
-    override val hitbox = Hitbox(0.0, 0.0, 16.0, 16.0)
+    override var referenceID: ActorID = 2147483647 // custom refID
+    override val hitbox = Hitbox(0.0, 0.0, TILE_SIZED, TILE_SIZED)
 
     var markerColour = Color.YELLOW
     var markerShape = 0
@@ -63,8 +64,8 @@ class BlockMarkerActor : ActorWithBody(Actor.RenderOrder.OVERLAY, physProp = Phy
     override fun update(delta: Float) {
         if (isVisible) {
             hitbox.setPosition(
-                    Terrarum.mouseTileX * 16.0,
-                    Terrarum.mouseTileY * 16.0
+                    Terrarum.mouseTileX * TILE_SIZED,
+                    (Terrarum.mouseTileY - floor((hitbox.height - 0.5) / TILE_SIZED)) * TILE_SIZED
             )
         }
     }
@@ -75,12 +76,14 @@ class BlockMarkerActor : ActorWithBody(Actor.RenderOrder.OVERLAY, physProp = Phy
     fun setGhost(actor: ActorWithBody) {
         ghost = actor.sprite
         hasGhost = true
+        hitbox.setDimension(actor.baseHitboxW.toDouble(), actor.baseHitboxH.toDouble())
     }
 
     fun unsetGhost() {
         ghost = null
         hasGhost = false
         setGhostColourNone()
+        hitbox.setDimension(TILE_SIZED, TILE_SIZED)
     }
 
     fun setGhostColourNone() { ghostColour = Color.WHITE }
diff --git a/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryMinimap.kt b/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryMinimap.kt
index 037de4c00..eaae6a8db 100644
--- a/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryMinimap.kt
+++ b/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryMinimap.kt
@@ -89,7 +89,7 @@ class UIInventoryMinimap(val full: UIInventoryFull) : UICanvas() {
 
         MinimapComposer.renderToBackground()
 
-        minimapFBO.inAction(minimapCamera, batch) {
+        minimapFBO.inActionF(minimapCamera, batch) {
             // whatever.
             MinimapComposer.tempTex.dispose()
             MinimapComposer.tempTex = Texture(MinimapComposer.minimap)
@@ -111,7 +111,7 @@ class UIInventoryMinimap(val full: UIInventoryFull) : UICanvas() {
                 Toolkit.fillArea(batch, 0f, 0f, MINIMAP_WIDTH, MINIMAP_HEIGHT)
                 // the actual image
                 batch.color = Color.WHITE
-                batch.draw(MinimapComposer.tempTex, tx, ty + MinimapComposer.totalHeight * minimapZoom, MinimapComposer.totalWidth * minimapZoom, -MinimapComposer.totalHeight * minimapZoom)
+                batch.draw(MinimapComposer.tempTex, tx, ty, MinimapComposer.totalWidth * minimapZoom, MinimapComposer.totalHeight * minimapZoom)
 
             }
         }