diff --git a/jam-ui/src/components/client/JKSessionScreen.js b/jam-ui/src/components/client/JKSessionScreen.js
index 3922aab84..829a00e53 100644
--- a/jam-ui/src/components/client/JKSessionScreen.js
+++ b/jam-ui/src/components/client/JKSessionScreen.js
@@ -998,7 +998,9 @@ const JKSessionScreen = () => {
 
   // Attach button handlers
   const handleAttachClick = useCallback(() => {
-    attachFileInputRef.current?.click();
+    if (attachFileInputRef.current) {
+      attachFileInputRef.current.click();
+    }
   }, []);
 
   const handleFileSelect = useCallback((e) => {
@@ -1017,9 +1019,11 @@ const JKSessionScreen = () => {
     }
 
     // Show warnings if any (e.g., backend may not fully support this type)
-    validation.warnings?.forEach(warning => {
-      console.warn('Attachment warning:', warning);
-    });
+    if (validation.warnings) {
+      validation.warnings.forEach(warning => {
+        console.warn('Attachment warning:', warning);
+      });
+    }
 
     // Open chat window if not already open
     dispatch(openModal('chat'));