Yeah UE GC safepoints at end of tick where there is no stack. That’s a common trick in systems that have both GC and ticking.

To be fair, FUGC doesn’t currently let you do that. The GC runs in a separate thread and soft handshakes at various points, which cause your game thread to react at poll checks and exits that might not be at end of tick.

But I could add a feature that lets you to force handshake responses to be at end of tick! That sounds like a good idea