Hey @MylonOrion,
We’re going to announce more about this, but effectively the older certificates for LeiaLoft have expired. They don’t affect users with current devices like Lume Pad, but for devices that aren’t supported by their manufacturer anymore, like RED’s Hydrogen One, you’ll need to manually update the LeiaLoft Store yourself.
To do so, follow the instructions at this link: LeiaLoft - RED Hydrogen