I have a EventSubscriber and the onKernelRequest method is not called when APP_ENV=prod. If APP_ENV=dev the onKernelRequest method is called.

The method getSubscribedEvents() is called if APP_ENV=prod and APP_ENV=dev.

I only change the value in the .env.local. I have no APP_ENV configuration regarding EventSubscriber.

Symfony version: 6.4.7

use SymfonyComponentEventDispatcherEventSubscriberInterface;
use SymfonyComponentHttpKernelEventRequestEvent;
use SymfonyComponentHttpKernelKernelEvents;

class RequestEventSubscriber implements EventSubscriberInterface
{
    public static function getSubscribedEvents(): array
    {
        return [
            KernelEvents::REQUEST => [
                ['onKernelRequest', 0]
            ]
        ];
    }

    public function onKernelRequest(RequestEvent $event): void
    {
        // Stuff
    }
}