Unreal Engine 4 games won't start

[Otto Ki]

Hi!

Games made with unreal engine 4 won't start for me, installation and everything else goes fine.
When I click on the games it says starting but after 2 seconds closes again.

Only happens with unreal engine games for example:

• Deep Rock Galactic
  
• Undefeated

I tried different nvidia drivers (got RTX 2080):

• 445.87
  
• 442.74
  
• 441.87

Anybody has any idea or faces the same issue? Would be nice if I could play those games :(

[crunchyfrog]

I have nothing I can suggest to help you but has this by any chance been happening the last couple of days only, after a recent Windows update?

Because I've similarly had issue with a couple of games (much older ones) like Shadowman, which was working perfectly the night before, then when I opened it up immediately next day, before doing anything else it just refuses to work with a DirectX error.

I've since tried a whole host of things, including an updated graphics driver, and nothing.

I may be completely barking up the wrong tree, but frankly nothing surprises me with Windows 10 these days.

[Otto Ki]

I tested it on my laptop, there it works with and without windows update.
It is just my PC that does not want to run unreal engine games..

I tried everything I could think of, there must be something trivial I am missing here.
I don't get any error it just writes starting and after 2 seconds stops without any error.

[The Giving One]

引用自 kicska_otto：

When I click on the games it says starting but after 2 seconds closes again.

Sounds like a conflict between the games and other software or security on your PC.

Check to be sure the firewall is allowing exceptions for all Steam games, as well as Steam itself also.

Check for other programs that might cause this also :

https://support.steampowered.com/kb_article.php?ref=9828-SFLZ-9289

[Otto Ki]

I tried a lot of things already, but nothing seems to help, I can't get them to run.
When I install a new game that is not unreal engine, it works though.

What I already tried:

• Update all drivers and windows
  
• Reinstall all C++ runtimes
  
• Reinstall steam
  
• Reinstall graphics card
  
• Reinstall the games which are not working several times
  
• Checking file integrity
  
• Uninstall antivirus and disable windows firewall as well

Sadly I can't find any errors in log to start on.

[crunchyfrog]

引用自 kicska_otto：

I tried a lot of things already, but nothing seems to help, I can't get them to run.
When I install a new game that is not unreal engine, it works though.

What I already tried:

• Update all drivers and windows
  
• Reinstall all C++ runtimes
  
• Reinstall steam
  
• Reinstall graphics card
  
• Reinstall the games which are not working several times
  
• Checking file integrity
  
• Uninstall antivirus and disable windows firewall as well

Sadly I can't find any errors in log to start on.

This is a real longshot, I'll admit, but have you tried Googling something like any official Unreal engine forums TODAY? It might be something that other people have also experienced, and they might just be noticing it.

[Otto Ki]

引用自 crunchyfrog：

引用自 kicska_otto：

I tried a lot of things already, but nothing seems to help, I can't get them to run.
When I install a new game that is not unreal engine, it works though.

What I already tried:

• Update all drivers and windows
  
• Reinstall all C++ runtimes
  
• Reinstall steam
  
• Reinstall graphics card
  
• Reinstall the games which are not working several times
  
• Checking file integrity
  
• Uninstall antivirus and disable windows firewall as well

Sadly I can't find any errors in log to start on.

This is a real longshot, I'll admit, but have you tried Googling something like any official Unreal engine forums TODAY? It might be something that other people have also experienced, and they might just be noticing it.

I tried to run the game directly from their exe and not from steam.
There I get an error for each game, seems like the same file but different game every time:

• fsd-win64-shipping.exe error 0xc000007b
  
• undefeated-win64-shipping.exe error 0xc000007b

I already checked my antivirus, I even deactivated it, nothing is blocked.

[crunchyfrog]

引用自 kicska_otto：

引用自 crunchyfrog：

This is a real longshot, I'll admit, but have you tried Googling something like any official Unreal engine forums TODAY? It might be something that other people have also experienced, and they might just be noticing it.

I tried to run the game directly from their exe and not from steam.
There I get an error for each game, seems like the same file but different game every time:

• fsd-win64-shipping.exe error 0xc000007b
  
• undefeated-win64-shipping.exe error 0xc000007b

I already checked my antivirus, I even deactivated it, nothing is blocked.

And what about what I asked? Have you Googled the Unreal forums today?

[Otto Ki]

引用自 crunchyfrog：

引用自 kicska_otto：

I tried to run the game directly from their exe and not from steam.
There I get an error for each game, seems like the same file but different game every time:

• fsd-win64-shipping.exe error 0xc000007b
  
• undefeated-win64-shipping.exe error 0xc000007b

I already checked my antivirus, I even deactivated it, nothing is blocked.

And what about what I asked? Have you Googled the Unreal forums today?

Sorry, yes i did, there were similar problems with other games in the past with the same file like
fortnite-win64-shipping.exe.

I tried the same on my pc, but I did not get it to work. I reinstalled c++ runtimes several times, I even matched the versions with my laptop where everything works.

[D A R E K]

I have nothing I can suggest to help you but has this by any chance been happening the last couple of days only, after a recent Windows update?

Because I've similarly had issue with a couple of games (much older ones) like Shadowman, which was working perfectly the night before, then when I opened it up immediately next day, before doing anything else it just refuses to work with a DirectX error.

I've since tried a whole host of things, including an updated graphics driver, and nothing.

I may be completely barking up the wrong tree, but frankly nothing surprises me with Windows 10 these days.

[Otto Ki]

引用自 D A R E K：

I have nothing I can suggest to help you but has this by any chance been happening the last couple of days only, after a recent Windows update?

Because I've similarly had issue with a couple of games (much older ones) like Shadowman, which was working perfectly the night before, then when I opened it up immediately next day, before doing anything else it just refuses to work with a DirectX error.

I've since tried a whole host of things, including an updated graphics driver, and nothing.

I may be completely barking up the wrong tree, but frankly nothing surprises me with Windows 10 these days.

I had no updates on my laptop, it was not turned on since last year december.
I tested there with and without updates and it still works.

[The Giving One]

引用自 kicska_otto：

Uninstall antivirus and disable windows firewall as well

What is the antivirus program that you had or have installed on that PC ?

Some can still leave behind other processes that can still cause issues, even if you uninstall them using normal methods.

For example, McAfee. You have to use a product removal tool for these types, to fully clean them from your system :

McAfee Product Removal Tool

https://service.mcafee.com/webcenter/portal/cp/home/articleview;jsessionid=mWFvrUrzN1D-DJkK2u2uVu7xu3vzum8Ksl4Nhen2lhc_2yRiU_EP!1801083531!-53234356?articleId=TS101331&_afrLoop=1845365062456321#!%40%40%3F_afrLoop%3D1845365062456321%26articleId%3DTS101331%26centerWidth%3D100%2525%26leftWidth%3D0%2525%26rightWidth%3D0%2525%26showFooter%3Dfalse%26showHeader%3Dfalse%26_adf.ctrl-state%3D146ndytf2b_4

Go to msconfig in Windows and look under the startup tab and services tab (Task Manager on W10) and look at what is actually running there.

https://support.microsoft.com/en-us/help/4026130/windows-how-to-open-msconfig-in-windows-10

[Otto Ki]

引用自 The Giving One：

引用自 kicska_otto：

Uninstall antivirus and disable windows firewall as well

What is the antivirus program that you had or have installed on that PC ?

Some can still leave behind other processes that can still cause issues, even if you uninstall them using normal methods.

For example, McAfee. You have to use a product removal tool for these types, to fully clean them from your system :

McAfee Product Removal Tool

https://service.mcafee.com/webcenter/portal/cp/home/articleview;jsessionid=mWFvrUrzN1D-DJkK2u2uVu7xu3vzum8Ksl4Nhen2lhc_2yRiU_EP!1801083531!-53234356?articleId=TS101331&_afrLoop=1845365062456321#!%40%40%3F_afrLoop%3D1845365062456321%26articleId%3DTS101331%26centerWidth%3D100%2525%26leftWidth%3D0%2525%26rightWidth%3D0%2525%26showFooter%3Dfalse%26showHeader%3Dfalse%26_adf.ctrl-state%3D146ndytf2b_4

Go to msconfig in Windows and look under the startup tab and services tab (Task Manager on W10) and look at what is actually running there.

https://support.microsoft.com/en-us/help/4026130/windows-how-to-open-msconfig-in-windows-10

I am using Kaspersky, never had a problem before and other games I install work normally.
I got Kaspersky on my Laptop as well and there the games work just fine. I will try Dependency Walker on both my PC and my Laptop to check what is maybe missing in DLLs.

[The Giving One]

引用自 kicska_otto：

I am using Kaspersky, never had a problem before and other games I install work normally.
I got Kaspersky on my Laptop as well and there the games work just fine. I will try Dependency Walker on both my PC and my Laptop to check what is maybe missing in DLLs.

If the antivirus had an update, and something changed such as security features for it or the settings, then "not having an issue before" would be irrelevant.

Make sure Steam and all games are listed as real-time scan exceptions in ALL security software and firewalls. Security needs to be totally leaving Steam and games alone in real-time scanning.

Run msconfig and look at what is running, as I suggested, please.

After you are sure they are all leaving Steam and games alone in real time, you need to verify the game files for each and every game before playtesting them again :

https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335

If you make software changes on your PC, you need to restart the PC to be sure the changes take effect. Then verify the game files and test the games.

If you do anything, verify the game files before trying to play the games to see if what you did helped the issue.

[Clom]

引用自 Otto Ki：

Hi!

Games made with unreal engine 4 won't start for me, installation and everything else goes fine.
When I click on the games it says starting but after 2 seconds closes again.

Only happens with unreal engine games for example:

• Deep Rock Galactic
  
• Undefeated

I tried different nvidia drivers (got RTX 2080):

• 445.87
  
• 442.74
  
• 441.87

Anybody has any idea or faces the same issue? Would be nice if I could play those games :(

Im having the same issue with FNaF security breach, It worked fine in the past put after reinstalling whenever I try to open it I get the same error report from unreal engine.

After displaying my login and epic ID it displays the following:

LowLevelFatalError [File:Unknown] [Line: 3227] MaterialFunction /Engine/Functions/Engine_MaterialFunctions03/Blends/Blend_Lighten.Blend_Lighten: Serial size mismatch: Got 28, Expected 186

fnaf9_Win64_Shipping
fnaf9_Win64_Shipping
fnaf9_Win64_Shipping
fnaf9_Win64_Shipping
fnaf9_Win64_Shipping
fnaf9_Win64_Shipping
fnaf9_Win64_Shipping
kernel32
ntdll

If anyone knows how to help please do

[Lavie]

Hi Clom!
I better create a new thread, because it's a bit confusing to read (even if it's the same issue)...

But here some things you try:
https://www.ubackup.com/articles/unreal-engine-4-crashing-jkzbj.html