Delay in Receiving Messages

## Overview

The LarkXR data channel does not perform any special processing on strings. If you are using a UE (Unreal Engine) application, be aware of the following behavior:

> When a message is sent, if the program is currently executing a statement (e.g., blocking the program), it will wait for the statement to finish and render the next frame **before** printing the received data channel message to the screen.

This means message display may appear delayed — but the message **is** received correctly.

## Diagnosis

To verify whether messages are being received in real time, add a `-LOG` argument to the application startup. This enables the application run log, which prints received data channel messages immediately regardless of frame rendering.

![Application args configuration showing -LOG parameter](https://docs.paraverse.cc/media/202504/5f5d554456df4e54bb17a6ad5d9165494696.png)

## Solution

This is expected behavior, not a bug. To work around the delay:

- Add `-LOG` to the application args to confirm messages are received in real time via the console log.
- Ensure your UE application is not blocking the game thread when processing data channel callbacks.