diff --git a/packages/viewer/src/modules/Viewer.ts b/packages/viewer/src/modules/Viewer.ts
index d88bd1cd2..d4b846c28 100644
--- a/packages/viewer/src/modules/Viewer.ts
+++ b/packages/viewer/src/modules/Viewer.ts
@@ -104,6 +104,7 @@ export class Viewer extends EventEmitter implements IViewer {
       WorldTree.getRenderTree(url).buildRenderTree()
       this.speckleRenderer.addRenderTree(url)
       this.zoom()
+      this.speckleRenderer.resetPipeline(true)
     })
   }
   public setSectionBox(
diff --git a/packages/viewer/src/modules/objects/SpeckleCameraControls.ts b/packages/viewer/src/modules/objects/SpeckleCameraControls.ts
index d7b60a09c..2c8eeb43a 100644
--- a/packages/viewer/src/modules/objects/SpeckleCameraControls.ts
+++ b/packages/viewer/src/modules/objects/SpeckleCameraControls.ts
@@ -309,10 +309,7 @@ export class SpeckleCameraControls extends CameraControls {
     }
     const zoomDelta = this._zoomEnd - this._zoom
     this._zoom +=
-      zoomDelta *
-      (this.overrideZoomLerpRatio
-        ? this.overrideZoomLerpRatio
-        : this.overrideZoomLerpRatio)
+      zoomDelta * (this.overrideZoomLerpRatio ? this.overrideZoomLerpRatio : lerpRatio)
     if (this._camera.zoom !== this._zoom) {
       if (approxZero(zoomDelta)) {
         this._zoom = this._zoomEnd
@@ -344,7 +341,7 @@ export class SpeckleCameraControls extends CameraControls {
         approxZero(deltaOffset.z, this.restThreshold) &&
         !this._hasRested &&
         !this._isTrucking &&
-        !this._didZoom
+        (isOrthographicCamera(this._camera) ? !this._didZoom : true)
       ) {
         this._hasRested = true
         this.dispatchEvent({ type: 'rest' })
@@ -364,7 +361,7 @@ export class SpeckleCameraControls extends CameraControls {
         approxZero(deltaOffset.y, this.restThreshold) &&
         approxZero(deltaOffset.z, this.restThreshold) &&
         !this._isTrucking &&
-        !this._didZoom
+        (isOrthographicCamera(this._camera) ? !this._didZoom : true)
       ) {
         this.dispatchEvent({ type: 'rest' })
         this._didDollyLastFrame = false