How to Seamless Travel when connected to Online Beacon?

H!
When I am connected to Online Beacon Host (for example ATestBeaconHost) and try to Seamless Travel to another level (locally using ServerTravel method) game crashes with this error log:

LogWindows:Error: === Critical error: ===
LogWindows:Error:
LogWindows:Error: Fatal error: [File:D:\Build++UE4+Release-4.13+Compile\Sync\Engine\Source\Runtime\Engine \Private\UnrealEngine.cpp] [Line: 10655]
LogWindows:Error: World /Game/Levels/One.One not cleaned up by garbage collection!
Error: World /Game/Levels/One.One [target]
Error: IpNetDriver /Engine/Transient.IpNetDriver_0 (ObjectProperty /Script/Engine.NetDriver:World)
Error: TestBeaconClient /Temp/Untitled_1.Untitled:PersistentLevel.TestBeaconClient_0 (ObjectProperty /Script /OnlineSubsystemUtils.OnlineBeacon:NetDriver)
Error: World /Temp/Untitled_1.Untitled (root) (ObjectProperty /Script/Engine.World:AuthorityGameMode)

I have added TestBeaconClient in GetSeamlessTravelActorList method in GameMode, IpNetDriver is UObject so it cannot be added.

I would appreciate any kind of advice or help.

Same here.

I was only alerted to this question recently, I’m sorry it wasn’t answered sooner. Please see
this thread