For the last month since the release of the Flight simulator Lockheed Martin Prepar3D v 5. there has been a issue with Radeon 5xxx, VII and Vega cards. The issue is a DXGI_ERROR_DEVICE_HUNG CTD with certain default and aftermarket aircraft when switching views. The issue does not affect r9 and RX5xx cards. Lockheed Martin has said they have reached out to AMD regarding this issue. Some of us have rolled back and tried drivers back to 19.7.1 to no avail.