The type of Index in the class FHashElementId is int, but the IndexType of IndexData in the class TRobinHoodHashTable is uint32, which caused our project to crash on Android devices.
Our project has a large number of objects, which may touch the boundary conditions of RobinHoodHashTable. We fixed the problem by changing the type of Index in the class FHashElementId to uint32.
In UE4.26, the type of Index in class FHashElementId was changed to int32. We tried this modification but did not fix our crash.(https://github.com/EpicGames/UnrealEngine/commit/a01cd8eb3981908b495843b64c2e71e1ee7fe218#diff-883a52d45abebaae0968c175e8aaabb08f61492ff50f357095379463a844d531)