Hello, you can try the following steps:
1. Press the “Setup” button on the mixer.
2. Navigate to the “Screen” or “Display” section in the setup menu.
3. Look for an option related to “FX Display” or “FX Page Display.” This option controls whether the FX engine page is automatically shown on the screen when you press the FX blue buttons.
4. Enable or set this option to “On” or “Auto” to ensure that the FX page is displayed when you press the FX buttons.
5. Save your changes and exit the setup menu.