diff --git a/addons/addon-webgl/src/TextureAtlas.ts b/addons/addon-webgl/src/TextureAtlas.ts
index 40d82df49..dba1ad474 100644
--- a/addons/addon-webgl/src/TextureAtlas.ts
+++ b/addons/addon-webgl/src/TextureAtlas.ts
@@ -204,7 +204,7 @@ export class TextureAtlas implements ITextureAtlas {
       // Add the new merged page to the end
       this.pages.push(mergedPage);
 
-      // Request the model to be cleared to refresh all texture pages.
+      // Invalidate renderer models so all texture pages are refreshed.
       this._pageLayoutVersion++;
       this._onAddTextureAtlasCanvas.fire(mergedPage.canvas);
     }
@@ -837,7 +837,7 @@ export class TextureAtlas implements ITextureAtlas {
           this._overflowSizePage = new AtlasPage(this._document, this._config.deviceMaxTextureSize);
           this.pages.push(this._overflowSizePage);
 
-          // Request the model to be cleared to refresh all texture pages.
+          // Invalidate renderer models so all texture pages are refreshed.
           this._pageLayoutVersion++;
           this._onAddTextureAtlasCanvas.fire(this._overflowSizePage.canvas);
         }
diff --git a/addons/addon-webgl/test/WebglAtlasOverflow.test.ts b/addons/addon-webgl/test/WebglAtlasOverflow.test.ts
index 5ab1961bf..1252c81cf 100644
--- a/addons/addon-webgl/test/WebglAtlasOverflow.test.ts
+++ b/addons/addon-webgl/test/WebglAtlasOverflow.test.ts
@@ -65,7 +65,6 @@ interface ITestWebglAddon extends WebglAddon {
 }
 
 interface IAtlasEventStats {
-  additions: number;
   removals: number;
   maxPages: number;
 }
@@ -90,7 +89,6 @@ interface IAtlasState {
   atlasTextures: number;
   pageLayoutVersion: number;
   overflowPageCreated: boolean;
-  additions: number;
   removals: number;
   maxPages: number;
 }
@@ -211,13 +209,11 @@ async function installAtlasEventStats(ctx: ITestContext): Promise<void> {
       return false;
     }
     const stats: IAtlasEventStats = {
-      additions: 0,
       removals: 0,
       maxPages: atlas.pages.length
     };
     w.atlasEventStats = stats;
     w.addon.onAddTextureAtlasCanvas(() => {
-      stats.additions++;
       stats.maxPages = Math.max(stats.maxPages, atlas.pages.length);
     });
     w.addon.onRemoveTextureAtlasCanvas(() => stats.removals++);
@@ -241,7 +237,6 @@ async function getAtlasState(ctx: ITestContext): Promise<IAtlasState> {
       atlasTextures: glyphRenderer._atlasTextures.length,
       pageLayoutVersion: atlas.pageLayoutVersion,
       overflowPageCreated: !!atlas._overflowSizePage,
-      additions: stats.additions,
       removals: stats.removals,
       maxPages: stats.maxPages
     };