Hello Tenno!
Quick PSA to broadcast that the team is actively investigating a crash related to running Warframe on DirectX 12 on an AMD Graphics Card.
From what we can tell, this impacts RDNA 2 and older GPUs; Radeon RX 7000 series do not seem to be effected.
If you have experienced this crash, the current workaround is to switch back to DirectX 11 in the launcher for now.
We will update this thread once we have found a solution and what the next steps are.
Thank you!