diff --git a/Source/Scene/Batched3DModel3DTileContent.js b/Source/Scene/Batched3DModel3DTileContent.js
index 9c0586953e5d..2a9860c27e1a 100644
--- a/Source/Scene/Batched3DModel3DTileContent.js
+++ b/Source/Scene/Batched3DModel3DTileContent.js
@@ -18,6 +18,7 @@ import Cesium3DTileFeatureTable from "./Cesium3DTileFeatureTable.js";
 import ClassificationModel from "./ClassificationModel.js";
 import Model from "./Model.js";
 import ModelUtility from "./ModelUtility.js";
+import ModelAnimationLoop from "./ModelAnimationLoop.js";
 
 /**
  * Represents the contents of a
@@ -432,6 +433,11 @@ function initialize(content, arrayBuffer, byteOffset) {
       sphericalHarmonicCoefficients: tileset.sphericalHarmonicCoefficients,
       specularEnvironmentMaps: tileset.specularEnvironmentMaps,
     });
+    content._model.readyPromise.then(function (model) {
+      model.activeAnimations.addAll({
+        loop: ModelAnimationLoop.REPEAT,
+      });
+    });
   } else {
     // This transcodes glTF to an internal representation for geometry so we can take advantage of the re-batching of vector data.
     // For a list of limitations on the input glTF, see the documentation for classificationType of Cesium3DTileset.
diff --git a/Source/Scene/ModelInstanceCollection.js b/Source/Scene/ModelInstanceCollection.js
index 120f77cb4fed..2c5ab96ebc31 100644
--- a/Source/Scene/ModelInstanceCollection.js
+++ b/Source/Scene/ModelInstanceCollection.js
@@ -26,6 +26,7 @@ import ModelInstance from "./ModelInstance.js";
 import ModelUtility from "./ModelUtility.js";
 import SceneMode from "./SceneMode.js";
 import ShadowMode from "./ShadowMode.js";
+import ModelAnimationLoop from "./ModelAnimationLoop.js";
 
 var LoadState = {
   NEEDS_LOAD: 0,
@@ -997,9 +998,15 @@ ModelInstanceCollection.prototype.update = function (frameState) {
     this._instancingSupported = context.instancedArrays;
     createModel(this, context);
     var that = this;
-    this._model.readyPromise.otherwise(function (error) {
-      that._state = LoadState.FAILED;
-      that._readyPromise.reject(error);
+    this._model.readyPromise.then(function (model) {
+      model.activeAnimations
+        .addAll({
+          loop: ModelAnimationLoop.REPEAT,
+        })
+        .otherwise(function (error) {
+          that._state = LoadState.FAILED;
+          that._readyPromise.reject(error);
+        });
     });
   }