diff --git a/packages/dashboard/app/components/TaskDocumentsTab.tsx b/packages/dashboard/app/components/TaskDocumentsTab.tsx
index b9f0e0dddb..77bfd56fbb 100644
--- a/packages/dashboard/app/components/TaskDocumentsTab.tsx
+++ b/packages/dashboard/app/components/TaskDocumentsTab.tsx
@@ -325,7 +325,7 @@ export function TaskDocumentsTab({
       const dialog = lightboxDialogRef.current;
       const focusableElements = Array.from(dialog?.querySelectorAll<HTMLElement>(
         'a[href], button:not([disabled]), textarea:not([disabled]), input:not([disabled]), select:not([disabled]), [tabindex]:not([tabindex="-1"])',
-      ) ?? []).filter((element) => !element.hasAttribute("disabled") && element.getAttribute("aria-hidden") !== "true");
+      ) ?? []).filter((element) => element.getAttribute("aria-hidden") !== "true");
 
       if (!dialog || focusableElements.length === 0) {
         event.preventDefault();
diff --git a/packages/engine/src/agent-tools.ts b/packages/engine/src/agent-tools.ts
index b35b51a184..a229aa6d56 100644
--- a/packages/engine/src/agent-tools.ts
+++ b/packages/engine/src/agent-tools.ts
@@ -1514,12 +1514,9 @@ function decodeArtifactDataBase64(params: Static<typeof artifactRegisterParams>)
   }
 
   const data = Buffer.from(normalized, "base64");
-  if (data.length === 0 || data.toString("base64").replace(/=+$/, "") !== normalized.replace(/=+$/, "")) {
-    throw new Error("dataBase64 must decode to non-empty artifact bytes.");
-  }
 
   if (!hasImageSignature(data, mimeType)) {
-    throw new Error("dataBase64 must decode to valid image bytes matching mimeType.");
+    throw new Error(`dataBase64 must decode to valid image bytes matching mimeType ${mimeType}.`);
   }
 
   return data;