I still haven’t been able to resolve the problem. I tried various Android packaging types in UE4 as well as packaging on Windows and MacOS, no difference. Is there something special I need to do to get the plug-in working on Android arm64? It definitely isn’t a 64-bit problem as it works fine on Win64, MacOS (which no longer supports 32-bit anyway) and iOS 64-bit. I’ve also tested this on a fresh project with the same results.