diff --git a/src/js/game/hud/parts/blueprint_placer.js b/src/js/game/hud/parts/blueprint_placer.js
index 92f5a0cb..141789a1 100644
--- a/src/js/game/hud/parts/blueprint_placer.js
+++ b/src/js/game/hud/parts/blueprint_placer.js
@@ -28,6 +28,7 @@ export class HUDBlueprintPlacer extends BaseHUDPart {
     }
 
     initialize() {
+        // @ts-ignore
         this.root.hud.signals.buildingsSelectedForCopy.add(this.createBlueprintFromBuildings, this);
 
         /** @type {TypedTrackedState<Blueprint?>} */
diff --git a/src/js/game/hud/parts/keybinding_overlay.js b/src/js/game/hud/parts/keybinding_overlay.js
index 65919d3c..f822b175 100644
--- a/src/js/game/hud/parts/keybinding_overlay.js
+++ b/src/js/game/hud/parts/keybinding_overlay.js
@@ -101,7 +101,7 @@ export class HUDKeybindingOverlay extends BaseHUDPart {
      */
     get anythingSelectedOnMap() {
         const selector = this.root.hud.parts.massSelector;
-        return selector && selector.selectedUids.size > 0;
+        return selector && selector.selectedEntities.size > 0;
     }
 
     /**
diff --git a/src/js/game/hud/parts/mass_selector.js b/src/js/game/hud/parts/mass_selector.js
index 72f4ca3e..5a34ec96 100644
--- a/src/js/game/hud/parts/mass_selector.js
+++ b/src/js/game/hud/parts/mass_selector.js
@@ -25,9 +25,6 @@ export class HUDMassSelector extends BaseHUDPart {
         /** @type {Set<Entity>} */
         this.selectedEntities = new Set();
 
-        /** @type {number} */
-        this.selectedUids = 42;
-
         this.root.signals.entityQueuedForDestroy.add(this.onEntityDestroyed, this);
         this.root.hud.signals.pasteBlueprintRequested.add(this.clearSelection, this);
 
diff --git a/src/js/game/hud/parts/wires_overlay.js b/src/js/game/hud/parts/wires_overlay.js
index 752d9cb3..9d9bbd61 100644
--- a/src/js/game/hud/parts/wires_overlay.js
+++ b/src/js/game/hud/parts/wires_overlay.js
@@ -8,6 +8,7 @@ import { KEYMAPPINGS } from "../../key_action_mapper";
 import { enumHubGoalRewards } from "../../tutorial_goals";
 import { BaseHUDPart } from "../base_hud_part";
 
+// @ts-ignore
 const copy = require("clipboard-copy");
 const wiresBackgroundDpi = 4;
 
@@ -61,7 +62,7 @@ export class HUDWiresOverlay extends BaseHUDPart {
         const desiredAlpha = this.root.currentLayer === "wires" ? 1.0 : 0.0;
 
         // On low performance, skip the fade
-        if (this.root.entityMgr.entities.length > 5000 || this.root.dynamicTickrate.averageFps < 50) {
+        if (this.root.entityMgr.entities.size > 5000 || this.root.dynamicTickrate.averageFps < 50) {
             this.currentAlpha = desiredAlpha;
         } else {
             this.currentAlpha = lerp(this.currentAlpha, desiredAlpha, 0.12);