--- nono/vm/renderer.cpp	2026/04/29 17:05:37	1.1.1.12
+++ nono/vm/renderer.cpp	2026/04/29 17:05:41	1.1.1.13
@@ -225,7 +225,10 @@ Renderer::DoRender(uint32 req)
 		// 表示ビットマップのリサイズ要求
 
 		bitmap24_valid = false;
-		bitmap24.reset(new BitmapRGB(new_viewwidth, new_viewheight));
+		bitmap24.reset();
+		try {
+			bitmap24.reset(new BitmapRGB(new_viewwidth, new_viewheight));
+		} catch (...) { }
 		if ((bool)bitmap24 == false) {
 			putlog(0, "Could not allocate BitmapRGB(%u, %u)",
 				new_viewwidth, new_viewheight);