Как удалось выяснить в вк, проблема в краше на экране авторизации.
Судя по логам краш возникает такой:


[2019.08.11-06.57.28:186][  6]LogWindows: Error: === Critical error: ===
[2019.08.11-06.57.28:186][  6]LogWindows: Error:
[2019.08.11-06.57.28:186][  6]LogWindows: Error: Fatal error: [File:C:\agent\UE4192\Engine\Source\Runtime\RenderCore\Private\Rende­ringThread.cpp] [Line: 819]
[2019.08.11-06.57.28:186][  6]LogWindows: Error: Rendering thread exception:
[2019.08.11-06.57.28:186][  6]LogWindows: Error: Fatal error: [File:C:\agent\UE4192\Engine\Source\Runtime\Windows\D3D11RHI\Private­\D3D11Query.cpp] [Line: 111]
[2019.08.11-06.57.28:186][  6]LogWindows: Error: GPU has crashed
[2019.08.11-06.57.28:186][  6]LogWindows: Error:
[2019.08.11-06.57.28:186][  6]LogWindows: Error:
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x00000000FCD2A49D KERNELBASE.dll!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000003FF6DD2D ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000003FF14DFB ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000003FEBE758 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x00000000403731A5 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000004036A056 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000004076719B ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x0000000040764EC1 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x00000000408B0C39 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x00000000408B2270 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000003FE4EC99 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000003FE4EDCC ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000004077B512 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000004077B598 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000003FF41C27 ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x000000003FF3A0BC ExoTanksMOBA-Win64-Shipping.exe!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x0000000076BB652D kernel32.dll!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x0000000076CEC521 ntdll.dll!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error: [Callstack] 0x0000000076CEC521 ntdll.dll!UnknownFunction []
[2019.08.11-06.57.28:186][  6]LogWindows: Error:
[2019.08.11-06.57.28:186][  6]LogWindows: Error:
[2019.08.11-06.57.28:186][  6]LogWindows: Error:
[2019.08.11-06.57.28:186][  6]LogWindows: Error:
[2019.08.11-06.57.28:202][  6]LogExit: Executing StaticShutdownAfterError

Дамп не был получен нашими серверами. Ищем проблему.