Fix the received mode flag

src/uas/UAS.cc

@@ -594,7 +594,6 @@ void UAS::receiveMessage(LinkInterface* link, mavlink_message_t message)
             if (this->base_mode != state.base_mode || this->custom_mode != state.custom_mode)
             {
                 modechanged = true;
-                receivedMode = true;
                 this->base_mode = state.base_mode;
                 this->custom_mode = state.custom_mode;
                 shortModeText = getShortModeTextFor(this->base_mode, this->custom_mode, this->autopilot);
@@ -604,6 +603,9 @@ void UAS::receiveMessage(LinkInterface* link, mavlink_message_t message)
                 modeAudio = " is now in " + audiomodeText;
             }
 
+            // We got the mode
+            receivedMode = true;
+
             // AUDIO
             if (modechanged && statechanged)
             {