I was waiting for an update, but didn't get one, so I manually installed grub-efi-amd64-signed 1.34.2+2.02~beta2-9ubuntu1.1, and now it works. I can not test if it also works when updating grub from 2.02~beta2-9ubuntu1 to 2.02~beta2-9ubuntu1.1 though, but I assume it does.
I was waiting for an update, but didn't get one, so I manually installed grub-efi- amd64-signed 1.34.2+ 2.02~beta2- 9ubuntu1. 1, and now it works. I can not test if it also works when updating grub from 2.02~beta2-9ubuntu1 to 2.02~beta2- 9ubuntu1. 1 though, but I assume it does.