Ultimate Member customization. Apply shortcodes in the "Content Block" field.

um_get_field_block.php

<?php

// apply shortcodes in the "Content Block" field.
add_filter( 'um_get_field_block', function( $data ) {
	if ( array_key_exists( 'content', $data ) ) {
		$data['content'] = apply_shortcodes( $data['content'] );
	}
	return $data;
} );