unreal-mac-getstats-fix
2Runtime fix for the UE editor crash-on-launch on macOS 26 Tahoe. No source rebuild.
The story
UE 5.6.1, 5.7, and 5.8 crash on every launch on macOS 26 (Tahoe) — a stack-buffer-overflow in FMacPlatformMemory::GetStats before the editor window even appears. The official fix is 'rebuild the engine from source.' This is the other fix: a 30-line DYLD_INSERT_LIBRARIES shim that patches the problem at runtime. Install, launch, work.
Highlights
- ✦Fixes UE 5.6.1 / 5.7 / 5.8 on macOS 26 without rebuilding the engine
- ✦30-line dylib shim — auditable in one screenful
- ✦Saved countless Mac Unreal devs from a multi-hour source build
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