hi,
i created ray tracing enabled c++ project…the project opens ok , editor runs ok build lights, shaders and compiles & plays ok. it open vs studio 2019 OK…then just close the project…and it gives a crash reports link text
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION 0x01c67ddb
when you look at the log there is an unreleased resource in D3D12
[2020.07.10-21.31.43:731][708]LogContentStreaming: Display: There are 1 unreleased StreamingManagers
the log file is attached . i tried to attach the minidump file but extension not allowed here.
it seems like this issue has not been resolved since there are similar problem.
Additional Info : Engine works OK if Ray Tracing is disable …i beileve there is a leaking resource that cause this upon closure…otherwise engine works . OK .
hey Unreal team,
I believe I found the reason for this issue which everybody recently is having because
Nvidia’s latest update added a new feature Developer Tab / “Restrict GPU access for performance counting…”
-it has 2 options one restrict for admin use and second is for all users.
-Although I am an admin on my desktop I changed the setting to Allow all users…and applied setting and accept the settings. (During that time UE editor should be closed
Then close control panel and open UE Editor and open the Ray_Tracing project again…I moved the object and changed material did Build light compiled played and open VS Studio …just basically played around. Then close VS Studio, saved changed in UE Editor and close it . “NO ERRORS or crashes…” I tired several times in a row…the whole sequence.
and it did not give any crash report after closing (I did not have problem during the runtime in Editor it was after closing)
To make sure I reopened NVIDIA Control Panel and changed the settings as original “Only Admin access” saved it and played with UE editor and after closing it gave Crash Report.
Then closed UE editor and changed NVIDIA Control Panel setting back to allow access all users to GPU Performance counting, saved it closed it . and reopened UE Editor and played around and no Crash report during or after. I need to test this more.
But can you make sure this is the issue. And to be honest that setting is for a security reason I believe that Nvidia had to put. it will be nice if you guys can resolve this internally and / or Nvidia to make sure we are not taking any risk changing it.
Thanks and love Unreal Engine
This issue keeps coming if i go to into material editor even tough i dont make a change When i close the UE editor then a crash report pops up. Kinda weird sometime one day it never happens and sometimes it does It might be thread issue maybe a deadlick or somethng Hard to tell Nit kuch experience D3D12 . It is on my list tough:)
And I keep posting these to be helpfull but it looks like Unreal staff are too busy:(
not really I have not been doing any Unreal stuf butI thought it was working OK
last time i used UE4.26.1 or maybe 4.26.2
but I had to use Nvidia older driver because UE4 had a different problem with RTX2070 cards If you use the latest drivers the menus starts flippering and become unusable So i hd to October 2021 or 2020 driver and not sure if it is fixed now since I am not using UE4 these days
Sorry not much help here
