diff --git a/src/kiri/mode/sla/work/raster.js b/src/kiri/mode/sla/work/raster.js
index fc85afb5..e490e489 100644
--- a/src/kiri/mode/sla/work/raster.js
+++ b/src/kiri/mode/sla/work/raster.js
@@ -52,6 +52,7 @@ export function renderRasterLayers(print, renderer, onlayer, progress) {
                     throw error;
                 }
                 useWasm = false;
+                console.warn("SLA raster WASM failed; falling back to JS rasterizer", error);
             }
         }
         if (!useWasm) {
diff --git a/src/wasm/kiri-sla.wasm b/src/wasm/kiri-sla.wasm
index 91617871..8cee410a 100755
Binary files a/src/wasm/kiri-sla.wasm and b/src/wasm/kiri-sla.wasm differ