Removes categories "tech" from list and month views

remove-categories-not-replated.php

/*
 * The Events Calendar Remove Events from Month and List Views
 * add coding to theme's functions.php
 * @version 3.12
 * modify here with event category slugs: array( 'concert', 'convention' )
*/
add_action( 'pre_get_posts', 'tribe_exclude_events_category_month_list' );
function tribe_exclude_events_category_month_list( $query ) {

	if ( isset( $query->query_vars['eventDisplay'] ) && ! is_singular( 'tribe_events' ) ) {

		if ( $query->query_vars['eventDisplay'] == 'list' && ! is_tax( Tribe__Events__Main::TAXONOMY ) || $query->query_vars['eventDisplay'] == 'month' && $query->query_vars['post_type'] == Tribe__Events__Main::POSTTYPE && ! is_tax( Tribe__Events__Main::TAXONOMY ) && empty( $query->query_vars['suppress_filters'] ) ) {

			$query->set( 'tax_query', array(

				array(
					'taxonomy' => Tribe__Events__Main::TAXONOMY,
					'field'    => 'slug',
					'terms'    => array( 'concert', 'convention' ),
					'operator' => 'NOT IN'
				)
			) );
		}

	}

	return $query;
}

Hello,
Thank you for this snipped! Is there a way to force the exclusion only on the general event calendar?
I'd like to display the category on widget and on the organizer page, but the snipped hide them on these places…
Or maybe add || places || organizer || widget
But I don't how to write the code :'(

I've tried this but it doesn't work:
if ( $query->query_vars['eventDisplay'] == 'list' && ! is_tax( Tribe__Events__Main::TAXONOMY ) || $query->query_vars['eventDisplay'] == 'month' && ! $query->tribe_is_event_venue && ! $query->tribe_is_event_organizer && $query->query_vars['post_type'] == Tribe__Events__Main::POSTTYPE && ! is_tax( Tribe__Events__Main::TAXONOMY ) && empty( $query->query_vars['suppress_filters'] ) ) {

Does not work anymore unfortunately. Do you have an idea how to fix this code @jesseeproductions?

I have found the culprit:
https://gist.github.com/Zodiac1978/a67e882619169959d38ad9a722160b48#file-functions-php-L29-L34

@Zodiac1978 - Thanks for linking to a solution.