When engaging with an enemy near the Whisper in Orban Glades I got very close to dying. Being very low on HP I ran to the Whisper, curious whether the game would allow me to fast travel. Sure enough it did, but after the fast travel loading screen disappeared instead of finding myself in Sacrament I was back in Orban Glades, but my character was lying dead on the floor near the Whisper. I am assuming that the enemy managed to kill me while the game was loading Sacrament to put my character there.
I would suggest to either turn the character invincible once fast travel has been initiated or to disable the fast travel option at Whisper while being engaged with an enemy.
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I have no dxdiag output, because I play the game on Linux.
Will be happy to provide the dxdiag output if anyone can give me instructions on how to do it on Linux using Steam Proton.