4th time trying to launch and every time… Server authentication Failed. Please try again. [10010]
Sorry to hear you’re having this issue. I’ll get this over to the team.
Letting you know this has been sent over to the team.
Hello @CombatWombats
Thank you for your report on our forums. 
We apologize you are having issues with the error 10010.
Please verify the integrity of game with the Steam integrity check to make sure is not a visual bug:
How To run a Steam Integrity Check Steam Support :: Verify Integrity of Game Files
After this please try this additional steps to resolve the issue :
Thank you very much for your patience.
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