diff --git a/frontend/src/App.svelte b/frontend/src/App.svelte
index 33ba2a6..be1832f 100644
--- a/frontend/src/App.svelte
+++ b/frontend/src/App.svelte
@@ -119,11 +119,12 @@
             })
           : draft();
         // The session already produced the processed PNGs: the calibration
-        // inventory PNG in results.inventoryPng and each sibling's in
-        // results.batchApply (parallel to s.batch). Attach them as
-        // processedBlob so the server upload carries real images (PUBLISH-40).
+        // inventory PNG in results.inventoryPng, and each sibling's in
+        // batchApply (a sibling of results on the measure state, parallel to
+        // s.batch). Attach them as processedBlob so the server upload carries
+        // real images (PUBLISH-40).
         const calIdx = s.calibrationIndex;
-        const apply = results?.batchApply;
+        const apply = s.capture.k === 'measure' ? s.capture.batchApply : null;
         // slab_photos.id is a global primary key, so the id must be unique
         // across slabs - key it on the slab id, not just the index/size.
         const photos = s.batch.map((source, i) => ({