Have you tried to re-install? Run as admin?
Sometimes it is immediate sometimes it is not. Looking through the logs I can't determine anything obvious that would lead to the crash.
What does ignore last session do? It came up with update 43 with absolutely no documentation that I could find on what it does.
Have shaders load from mods so you can have a skybox with less sun.
Example would be to have a skybox of a moon and have the "sun" give off less...
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