diff --git a/gnome/src/cursormanager.js b/gnome/src/cursormanager.js
index 024f84f..fa65a4a 100644
--- a/gnome/src/cursormanager.js
+++ b/gnome/src/cursormanager.js
@@ -212,7 +212,7 @@ var CursorManager = class CursorManager {
 
     _queueVisibilityUpdate() {
         this._queued_visibility_update = true;
-        this._cursorTrackerSetPointerVisibleBound(false);
+        if (this._cursorTrackerSetPointerVisibleBound) this._cursorTrackerSetPointerVisibleBound(false);
         this._queueSpriteUpdate();
     }
 
diff --git a/gnome/src/xrEffect.js b/gnome/src/xrEffect.js
index e88b347..bfb036f 100644
--- a/gnome/src/xrEffect.js
+++ b/gnome/src/xrEffect.js
@@ -362,8 +362,13 @@ var XREffect = GObject.registerClass({
             if (!this._initialized) {
                 this.set_uniform_float(this.get_uniform_location('uDesktopTexture'), 1, [0]);
 
-                this.get_pipeline().set_layer_texture(1, calibratingImage.get_texture());
-                this.get_pipeline().set_layer_texture(2, customBannerImage.get_texture());
+                try {
+                    // this can break in GNOME 42
+                    this.get_pipeline().set_layer_texture(1, calibratingImage.get_texture());
+                    this.get_pipeline().set_layer_texture(2, customBannerImage.get_texture());
+                } catch (e) {
+                    Globals.logger.log(`ERROR: xrEffect.js vfunc_paint_target ${e.message}\n${e.stack}`);
+                }
                 this.get_pipeline().set_uniform_1i(this.get_uniform_location('uCalibratingTexture'), 1);
                 this.get_pipeline().set_uniform_1i(this.get_uniform_location('uCustomBannerTexture'), 2);