diff --git a/src/lib/streamCache.svelte.ts b/src/lib/streamCache.svelte.ts
index e2efd07..83878c2 100644
--- a/src/lib/streamCache.svelte.ts
+++ b/src/lib/streamCache.svelte.ts
@@ -51,7 +51,8 @@ export async function download(stream: StreamSummary) {
                 partials.delete(stream.id);
                 cached.add(stream.id);
                 return;
-            } catch {
+            } catch (err) {
+                console.error(`[streamCache] ${stream.id} attempt failed`, err);
                 // reset attempts if download of at least one chunk successful
                 attempt = (partials.get(stream.id)?.received ?? 0) > before ? 0 : attempt + 1;
                 if (attempt === MAX_ATTEMPTS) return;
@@ -90,7 +91,9 @@ async function attemptDownload(stream: StreamSummary) {
         partials.set(stream.id, state);
         downloading.set(stream.id, percent(state.received, state.total));
     }
+    console.log(`[streamCache] ${stream.id} assembling ${state.total} bytes`);
     await assemble(stream.id, state.total);
+    console.log(`[streamCache] ${stream.id} assembled`);
 }
 
 /** fetch chunk starting from the last valid one, store in OPFS, and return updated state */