Thanks for the reports, they pinned it down.
Patch 2 changed the VR start-up questions so OpenXR came first, and the game talked to the Meta OpenXR software before you could answer the Oculus question. That is the likely reason Oculus stopped opening in the headset for some of you.
Please try this test version:
https://dload.hitechcreations.com/aceshigh11vrtest.exe1. Download it into the ah32 folder inside your Aces High III folder (the same folder as aceshigh11.exe).
2. Double-click aceshigh11vrtest.exe to start the game.
3. The questions now come in the old order: Oculus first, then Steam (OpenVR), then OpenXR last. A Quest player answers Yes to Oculus.
If OpenXR cannot start, it now drops back to your monitor with a message instead of closing the game.
You do not need Steam for a Quest. The Oculus choice only uses the Meta Horizon Link software. Not getting the OpenXR question is fine.
Please post here whether Oculus opens in your headset and whether your VR controllers show. The fix goes into Patch 3.
HiTech