diff --git a/assets/CHANGELOG.xlsx b/assets/CHANGELOG.xlsx
index ad4994c..8a57bcd 100644
Binary files a/assets/CHANGELOG.xlsx and b/assets/CHANGELOG.xlsx differ
diff --git a/scripts/altium365_part_request.py b/scripts/altium365_part_request.py
index d757b3a..481552f 100644
--- a/scripts/altium365_part_request.py
+++ b/scripts/altium365_part_request.py
@@ -56,6 +56,7 @@ from selenium.webdriver.chrome.service import Service
 from selenium.webdriver.common.by import By
 from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.support import expected_conditions as EC
+from selenium.common.exceptions import TimeoutException
 
 
 def make_driver(debugger_address, chromedriver):
@@ -122,7 +123,17 @@ def _attach_files(driver, files):
 
 def submit_request(driver, base, req, no_submit=False):
     driver.get(f"{base}/partrequestsmanagement/Tasks/Add")
-    _wait(driver, EC.presence_of_element_located((By.ID, "Manufacturer")))
+    try:
+        _wait(driver, EC.presence_of_element_located((By.ID, "Manufacturer")), t=20)
+    except TimeoutException:
+        url = driver.current_url
+        if any(k in url.lower() for k in ("auth.altium.com", "signin", "login", "oauth")):
+            raise RuntimeError(
+                "NOT SIGNED IN — this Chrome (the one on the debug port) is on the Altium login "
+                "page, so the form never loaded. Open that same Chrome profile, sign into the "
+                "Workspace (keep me signed in), leave it open, and re-run.")
+        raise RuntimeError(f"The 'Add new request' form did not load (no #Manufacturer field). "
+                           f"Current page URL: {url}")
     _set_text(driver, By.ID, "Manufacturer", req.get("manufacturer", ""))
     _set_text(driver, By.ID, "ManufacturerPartNumbers", req.get("mpn", ""))
     _set_text(driver, By.ID, "Description", req.get("description", ""))
@@ -166,9 +177,10 @@ def main():
             try:
                 r = submit_request(driver, a.base.rstrip("/"), req, no_submit=no_submit)
             except Exception as e:
-                r = {"mpn": req.get("mpn"), "status": "error", "error": str(e)[:300]}
+                r = {"mpn": req.get("mpn"), "status": "error", "error": str(e).splitlines()[0][:400]}
             results.append(r)
             print(f"[{i+1}/{len(requests)}] {req.get('mpn')}: {r['status']}"
+                  + (f"  -> {r['error']}" if r.get("error") else "")
                   + (f"  MISSING {r['missing_files']}" if r.get("missing_files") else ""))
             if a.review_first and first and not a.no_submit:
                 input("Review the first request in the browser, then press Enter to submit the rest...")