Sveltekit auth helper update row (with RLS) fails without error

import { getSupabase } from '@supabase/auth-helpers-sveltekit';
import { error, redirect } from '@sveltejs/kit';

/** @type {import('./$types').Actions} */
export const actions = {
    default: async (event) => {
        const { request } = event;
        const { session, supabaseClient } = await getSupabase(event);
        console.log('supabaseClient', supabaseClient);
        if (!session) {
            // the user is not signed in
            throw error(403, { message: 'Unauthorized' });
        }
        const formData = await request.formData();
        const { data: profileData, error: profileError } = supabaseClient
            .from('profile')
            .update({
                first_name: formData.get('first_name'),
                family_name: formData.get('family_name'),
                phone: formData.get('phone'),
                mobile: formData.get('mobile'),
                mobile_reception: parseInt(formData.get('mobile_reception')),
                rfs_survival_plan: formData.get('rfs_survival_plan')
            })
            .eq('id', session.user.id);
        console.log('profileData', profileData);
        console.log('profileError', profileError);
        if (profileError) {
            console.log('update error profileAboutMe:', profileError);
            throw error(400, profileError.message);
        }
        return {
            user: session.user,
            profileData
        };
    }
};