LED notification stopped working on Fp3 (Iodé 5.3, no microG)

Hey everyone!

I’m not exactly sure when it started but the LED notification on my Fairphone3 (Iodé 5.3, no microG) stopped working even though it is swithed on in the settings.

Any ideas what happened and how to make it work again?

Edit: I found out that if I switch the LED-notfication off and then on again in the settings it works. But if I restart the phone it doesn’t work again.

Thanks!