diff --git a/packages/canvas/canvas-extract/src/CanvasExtract.js b/packages/canvas/canvas-extract/src/CanvasExtract.js
index a36ddbf..f42928e 100644
--- a/packages/canvas/canvas-extract/src/CanvasExtract.js
+++ b/packages/canvas/canvas-extract/src/CanvasExtract.js
@@ -34,7 +34,7 @@
      * Will return a HTML Image of the target
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLImageElement} HTML Image of the target
      */
     image(target)
@@ -51,7 +51,7 @@
      *  `CanvasExtract.getCanvas` and then running toDataURL on that.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {string} A base64 encoded string of the texture.
      */
     base64(target)
@@ -63,7 +63,7 @@
      * Creates a Canvas element, renders this target to it and then returns it.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLCanvasElement} A Canvas element with the texture rendered on.
      */
     canvas(target)
@@ -118,7 +118,7 @@
      * order, with integer values between 0 and 255 (included).
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {Uint8ClampedArray} One-dimensional array containing the pixel data of the entire texture
      */
     pixels(target)

diff --git a/packages/canvas/canvas-extract/src/CanvasExtract.js b/packages/canvas/canvas-extract/src/CanvasExtract.js
index a36ddbf..f42928e 100644
--- a/packages/canvas/canvas-extract/src/CanvasExtract.js
+++ b/packages/canvas/canvas-extract/src/CanvasExtract.js
@@ -34,7 +34,7 @@
      * Will return a HTML Image of the target
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLImageElement} HTML Image of the target
      */
     image(target)
@@ -51,7 +51,7 @@
      *  `CanvasExtract.getCanvas` and then running toDataURL on that.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {string} A base64 encoded string of the texture.
      */
     base64(target)
@@ -63,7 +63,7 @@
      * Creates a Canvas element, renders this target to it and then returns it.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLCanvasElement} A Canvas element with the texture rendered on.
      */
     canvas(target)
@@ -118,7 +118,7 @@
      * order, with integer values between 0 and 255 (included).
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {Uint8ClampedArray} One-dimensional array containing the pixel data of the entire texture
      */
     pixels(target)
diff --git a/packages/extract/src/Extract.js b/packages/extract/src/Extract.js
index b7a36ab..82f10b3 100644
--- a/packages/extract/src/Extract.js
+++ b/packages/extract/src/Extract.js
@@ -35,7 +35,7 @@
      * Will return a HTML Image of the target
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLImageElement} HTML Image of the target
      */
     image(target)
@@ -52,7 +52,7 @@
      *  `Extract.getCanvas` and then running toDataURL on that.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {string} A base64 encoded string of the texture.
      */
     base64(target)
@@ -64,7 +64,7 @@
      * Creates a Canvas element, renders this target to it and then returns it.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLCanvasElement} A Canvas element with the texture rendered on.
      */
     canvas(target)
@@ -157,7 +157,7 @@
      * order, with integer values between 0 and 255 (included).
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {Uint8ClampedArray} One-dimensional array containing the pixel data of the entire texture
      */
     pixels(target)

diff --git a/packages/canvas/canvas-extract/src/CanvasExtract.js b/packages/canvas/canvas-extract/src/CanvasExtract.js
index a36ddbf..f42928e 100644
--- a/packages/canvas/canvas-extract/src/CanvasExtract.js
+++ b/packages/canvas/canvas-extract/src/CanvasExtract.js
@@ -34,7 +34,7 @@
      * Will return a HTML Image of the target
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLImageElement} HTML Image of the target
      */
     image(target)
@@ -51,7 +51,7 @@
      *  `CanvasExtract.getCanvas` and then running toDataURL on that.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {string} A base64 encoded string of the texture.
      */
     base64(target)
@@ -63,7 +63,7 @@
      * Creates a Canvas element, renders this target to it and then returns it.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLCanvasElement} A Canvas element with the texture rendered on.
      */
     canvas(target)
@@ -118,7 +118,7 @@
      * order, with integer values between 0 and 255 (included).
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {Uint8ClampedArray} One-dimensional array containing the pixel data of the entire texture
      */
     pixels(target)
diff --git a/packages/extract/src/Extract.js b/packages/extract/src/Extract.js
index b7a36ab..82f10b3 100644
--- a/packages/extract/src/Extract.js
+++ b/packages/extract/src/Extract.js
@@ -35,7 +35,7 @@
      * Will return a HTML Image of the target
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLImageElement} HTML Image of the target
      */
     image(target)
@@ -52,7 +52,7 @@
      *  `Extract.getCanvas` and then running toDataURL on that.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {string} A base64 encoded string of the texture.
      */
     base64(target)
@@ -64,7 +64,7 @@
      * Creates a Canvas element, renders this target to it and then returns it.
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {HTMLCanvasElement} A Canvas element with the texture rendered on.
      */
     canvas(target)
@@ -157,7 +157,7 @@
      * order, with integer values between 0 and 255 (included).
      *
      * @param {PIXI.DisplayObject|PIXI.RenderTexture} target - A displayObject or renderTexture
-     *  to convert. If left empty will use use the main renderer
+     *  to convert. If left empty will use the main renderer
      * @return {Uint8ClampedArray} One-dimensional array containing the pixel data of the entire texture
      */
     pixels(target)
diff --git a/packages/interaction/src/InteractionManager.js b/packages/interaction/src/InteractionManager.js
index cd46b06..36b060f 100644
--- a/packages/interaction/src/InteractionManager.js
+++ b/packages/interaction/src/InteractionManager.js
@@ -1768,8 +1768,8 @@
                 if (typeof touch.pointerType === 'undefined') touch.pointerType = 'touch';
                 if (typeof touch.pointerId === 'undefined') touch.pointerId = touch.identifier || 0;
                 if (typeof touch.pressure === 'undefined') touch.pressure = touch.force || 0.5;
-                touch.twist = 0;
-                touch.tangentialPressure = 0;
+                if (typeof touch.twist === 'undefined') touch.twist = 0;
+                if (typeof touch.tangentialPressure === 'undefined') touch.tangentialPressure = 0;
                 // TODO: Remove these, as layerX/Y is not a standard, is deprecated, has uneven
                 // support, and the fill ins are not quite the same
                 // offsetX/Y might be okay, but is not the same as clientX/Y when the canvas's top
@@ -1794,8 +1794,8 @@
             if (typeof event.pointerType === 'undefined') event.pointerType = 'mouse';
             if (typeof event.pointerId === 'undefined') event.pointerId = MOUSE_POINTER_ID;
             if (typeof event.pressure === 'undefined') event.pressure = 0.5;
-            event.twist = 0;
-            event.tangentialPressure = 0;
+            if (typeof event.twist === 'undefined') event.twist = 0;
+            if (typeof event.tangentialPressure === 'undefined') event.tangentialPressure = 0;
 
             // mark the mouse event as normalized, just so that we know we did it
             event.isNormalized = true;