Set the level order in which the PMPro Member Homepages Add On should try to redirect members to the corresponding homepage.

my_pmpromh_prioritized_levels.php

<?php

/**
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 */

// Copy from below this line.

/*
 * Set the level order in which the PMPro Member Homepages Add On
 * should try to redirect members to the corresponding homepage.
 */
function my_pmpromh_prioritized_levels( $prioritized_levels ) {
	// Ex. This line will first try to redirect the user for the homepage for level 2.
	//     If the user does not have level 2 or level 2 does not have a homepage set,
	//     The code will try level 3. If the user does not have level 3 or level 3 does
	//     not have a homepage set, it will try level 1. 
	return array( 2, 3, 1 );
}
add_filter( 'pmpromh_prioritized_levels', 'my_pmpromh_prioritized_levels' );