I am a fairly advanced UE developer. I hare recently upgraded my laptop to a GE75 Raider with i9 and 3080 running Dx12, Win10. It is set up to run using the dedicated graphics processor.
Packaged (shipping or development) projects built with 4.21 that run successfully on other systems (my desktop is a 19, 2080Ti, Dx12, Win10) don’t run AT ALL on the new system. After clicking on the packaged .exe, I get a spinning icon for a second, and then nothing else. No error…or crash. Just nothing.
This systems has a fresh UE4.21 and UE4.27 installation. No plugins loaded except defaults.
I have created a new default empty ue4.21 project (blueprint game) with started content, saved the minimal default map and added the map to the package list. I can run from the editor or VR preview, event the “standalone game” successfully. I can “launch” the game from the editor successfully (orange chairs)
If I package, however, the resulting binary will not run. No errors. The packaging output shows nothing unusual and end in “Success”.
When I try to open the editor project through explorer by clicking on “MyProject.uproject” I get the same behavior. It does not open. I can only launch the editor through Epic Games Launcher.
I have followed the same process using 4.27, and I get a working packaged output.
What could possibly be blocking 4.21 content from running on this new system?
The computer has Steam, Steam VR, WMR, and open XR Toolkits installed. This issue is happening with NO VR content.
I have uninstalled UE4, cleaned the registry and freshly reinstalled 4.21 and 4.27.