diff --git a/src/i18n/bundle.rs b/src/i18n/bundle.rs
index d515adb..da17c61 100644
--- a/src/i18n/bundle.rs
+++ b/src/i18n/bundle.rs
@@ -67,11 +67,18 @@ impl TranslationFile {
     }
 
     fn get(&self, key: &str) -> Option<&String> {
-        self.messages.get(key)
+        let result = self.messages.get(key);
+        if result.is_none() {
+            log::warn!("Translation key not found in bundle: {} (available keys: {})", key, self.messages.len());
+        }
+        result
     }
 
     fn merge(&mut self, other: Self) {
+        let before = self.messages.len();
         self.messages.extend(other.messages);
+        let after = self.messages.len();
+        log::debug!("Merged {} translations (total: {})", after - before, after);
     }
 }