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If you undo your fix and look at your app in Activity Monitor, what do you see? You are right: The iOS app shows up as 'Intel' kind in the Activity Monitor while the Simulator app shows up as 'Apple' kind. Thanks Quinn!

I believe you are right. My host machine is indeed a Macbook Pro (14-inch, 2021) that has the M1 family chip. On my Xcode project, I was excluding the "arm64" architecture for the simulator devices due to some old dependencies via the "EXCLUDED_ARCHS[sdk=iphonesimulator*]" = arm64; flag. As far as I can understand, this was triggering the simulator processes to spawn under Rosetta emulation, although this was not shown somewhere. Even the Activity Monitor window displayed 'Apple' instead of 'Intel' in the 'Kind' column: When I removed the "EXCLUDED_ARCHS[sdk=iphonesimulator*]" = arm64; flag, adjusted my dependencies and re-run the app on the Simulator, I was able to open the QuickLook preview controller without a crash, so I assume that this flag was to blame here. As a general question, is there a way to know whether the simulator instance runs under Rosetta emulation?

Hello Quinn, I have temporarily removed Sentry, re-tested and it still crashes. Please find the updated crash report attached. SSSSSS PPPPP 4-4-22, 14-25.crash

Hey Quinn! I am attaching the full crash report in this answer: SSSSSS PPPPP 1-4-22, 09-07.crash