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that if more than 5 HTC Vive VR trackers are connected, UE4 crashes

I want to use a continuous Transform( Tick -> Transform) value of 9 vive tracker.


If there are more than five trackers, the unreal engine will be shutdown

Turning on the steam compositor allows nine tracker connections but cannot be continuous Transform( Tick -> Transform)

What should I do?

Thank you

6 Tracker error ㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ

Assertion failed: Key.IsValid() [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp] [Line: 6343]

UE4Editor_Core!FDebug::AssertFailed() [d:\build++ue4\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:425] UE4Editor_Slate!FSlateApplication::OnControllerButtonReleased() [d:\build++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6345] UE4Editor_SteamVRController!FSteamVRController::SendControllerEvents() [d:\build++ue4\sync\engine\plugins\runtime\steam\steamvr\source\steamvrcontroller\private\steamvrcontroller.cpp:430] UE4Editor_ApplicationCore!FWindowsApplication::PollGameDeviceState() [d:\build++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2259] UE4Editor_Slate!FSlateApplication::PollGameDeviceState() [d:\build++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1594] UE4Editor!FEngineLoop::Tick() [d:\build++ue4\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3474] UE4Editor!GuardedMain() [d:\build++ue4\sync\engine\source\runtime\launch\private\launch.cpp:166] UE4Editor!GuardedMainWrapper() [d:\build++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:144] UE4Editor!WinMain() [d:\build++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:223] UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283] kernel32 ntdll

Product Version: UE 4.20
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asked Apr 10 '19 at 10:38 AM in VR

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