No, a couple of customers have suggested that installing the RJ again and not updating the navigation data via Navigraph has fixed the issue for them: 2024 ND + GNLU Blank Screens | Just Flight Community
Yes, this is specifically with regards to an entirely blank ND and FMS in MSFS 2024, not the separate issue with partial PED, which appears to be a result of leaving the aircraft powered by batteries alone for prolonged periods.
Martyn - Just Flight