Issue with onAuthStateChange in Pinia + Supabase

supabase.auth.onAuthStateChange((event, session) => {
    setTimeout(async () => {
        if (event === 'SIGNED_IN') {
            const { data, error } = await supabase
                .from('study_settings')
                .select<'*', StudySettings>('*')
                .eq('user_id', session.user.id)
                .single();

            if (error) return;

            if (data) {
                currentLevel.value = levels.value.indexOf(data.level);
            }
            console.log('Updated', levels.value[currentLevel.value]);
        }
    }, 0);
});