Unreal Engine 4.25 released!

General Announcements
359

After upgrading got the problems with loading one of the tiles. Below is the example from crashLogs



[2020.07.28-09.57.21:749][725]r.TemporalAACurrentFrameWeight = "0.15"
[2020.07.28-09.57.36:844][725]LogWindows: Windows GetLastError: Операция успешно завершена. (0)
[2020.07.28-09.57.36:844][725]LogOutputDevice: Warning:

Script Stack (0 frames):

[2020.07.28-09.57.36:844][725]LogWindows: Windows GetLastError: Операция успешно завершена. (0)
[2020.07.28-09.57.36:845][725]LogThreadingWindows: Error: Runnable thread RenderThread 1 crashed.
[2020.07.28-09.57.36:845][725]LogWindows: Error: === Critical error: ===
[2020.07.28-09.57.36:846][725]LogWindows: Error:
[2020.07.28-09.57.36:846][725]LogWindows: Error: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/RenderCore/Private/RenderingThread.cpp] [Line: 855]
[2020.07.28-09.57.36:846][725]LogWindows: Error: Rendering thread exception:
[2020.07.28-09.57.36:846][725]LogWindows: Error: Fatal error!
[2020.07.28-09.57.36:846][725]LogWindows: Error:
[2020.07.28-09.57.36:846][725]LogWindows: Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x000001b8
[2020.07.28-09.57.36:846][725]LogWindows: Error:
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbf0de3a45 UE4Editor-Renderer.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbf0def4fe UE4Editor-Renderer.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbfac3158f UE4Editor-Engine.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbfac491fd UE4Editor-Engine.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbfac80c50 UE4Editor-Engine.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbed148301 UE4Editor-SlateRHIRenderer.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbed1411f5 UE4Editor-SlateRHIRenderer.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffbed153c0e UE4Editor-SlateRHIRenderer.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffc011587d8 UE4Editor-Core.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffc01158aa3 UE4Editor-Core.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffc775bf892 UE4Editor-RenderCore.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffc775c53d4 UE4Editor-RenderCore.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffc0164025b UE4Editor-Core.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffc01637c30 UE4Editor-Core.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffcda327bd4 .DLL!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error: [Callstack] 0x00007ffcdae8ce51 ntdll.dll!UnknownFunction ]
[2020.07.28-09.57.36:846][725]LogWindows: Error:
[2020.07.28-09.57.36:846][725]LogWindows: Error:
[2020.07.28-09.57.36:846][725]LogWindows: Error:
[2020.07.28-09.57.36:846][725]LogWindows: Error:
[2020.07.28-09.57.36:846][725]LogWindows: Error: Crash in runnable thread RenderThread 1
[2020.07.28-09.57.36:847][725]LogWindows: Error: HandleError re-entered.
[2020.07.28-09.57.36:975][725]LogExit: Executing StaticShutdownAfterError
[2020.07.28-09.57.36:975][725]LogWindows: FPlatformMisc::RequestExit(1)
[2020.07.28-09.57.36:975][725]LogCore: Engine exit requested (reason: Win RequestExit)
[2020.07.28-09.57.37:055][725]Log file closed, 07/28/20 15:57:37

Is there a way to downgrade to 4.25.1? Or is there a way to fix this?)

360

I’ve never seen a hotfix break anything serious before, so I’m sure we can give them a pass on this.

Even if you could roll back, that’s gonna present a number of issues you might not consider. I feel pretty strongly that you would have a higher risk of corrupting your project by rolling back than doing anything else. Best just to wait for the fix, which they’ve given us pretty quickly here.

361

I have been using UE since 4.9 and never happened to me that a hotfix breaking things, but anyway, everyone must do a backup before upgrading certain software pieces:

  • gpu driver update: backup your system drive
  • windows update: backup your system drive
  • UE new release: backup ue projects
  • UE new release updates (hotfixes): backup ue installation and ue projects

There are several backup solutions which does incremental backups which are fast to backup and restore if anything goes wrong, you won’t waste time and can be up and running after few clicks. I also do backups whenever I finish major project changes. Backups are as much important as version control software, you can’t escape critical situations without any or both.

362

We have VCS, and there is no problem with it, but we cant downgrade to minor version (4.25.1)… and don`t know how to solve problem right now…

BTW: Of course the problem is appears not on only one PC, there are several configs which leads to the same crash result

363

Me too, not from 4.9 but this is first time hotfix update is touched something

364

The only way at this point to have the 4.25.1 back to your system is downloading the .zip file with source and rebuild the engine, which you can download at this link (need account at GitHub and it must be linked with Epic account): https://github.com/EpicGames/UnrealEngine/releases

Notice that it could occur that some resources inside the project that have been opened and saved with 4.25.2 might make them not able to be opened at 4.25.1 (serialization issues), so you will need to use backup of your files. Hopefully it won’t happen.

PS: You won’t have it at Epic launcher and will need to get shortcuts from the executables at the compiled folders.

365

Thanks! Just started doing this operation. I’ll write back a little later how it went

366

UPDATE

4.25.3 Hotfix is now available in the launcher! This update specifically address the following issue:

UE-95865 Updating C++ projects with Marketplace plugins in 4.25.2 fails to build project

Thanks again for your quick feedback and help identifying the problem, we appreciate you!

367

This time I will wait for the all clear from others before I update :smiley:

368

4.25.3 works great.

369

Do you mean Next time you will wait for the all clear from others before updating?

Anyway the update fixed the problem for me :), but i’m only learning the engine at the moment.

370

A fix for last hotfix, ok epic…

371

It seems like the polycut tool disappears as you reach the outter edge of a mesh. Not sure if this is a bug or intentionally, but it severely limits what one can do.

372

For those who interested. The problem was related to Virtual Textures, one of them was converted by us at previous patch in Engine Content folder, and thats why it was leading to crash after updating. Thanks everybody for the help.

373

I’ve downgraded to 4.25.0 because I can’t package my game anymore and started using for the first time ue4 from source but each time I want to compile I get this error. Never saw this before. What could cause this error?

374

Updated to 4.25.3 and I now get a message saying. The following modules are missing or built with a different engine version for megascans. I deleted plugin and reinstalled through bridge but still get this. Any help would be huge. Thanks

375

Can the issue of World Offset Particles be fixed anytime soon.

376

Related to my problem above, does anyone know what the problems can be? I’ve tested on 4.25.0 and 4.25.3 and still get the same errors. Tried on a fresh project and still the same. Also tested on a new computer and I’m getting those errors.
This only appears when building ETC2. With ASTC it’s working, but my game is crashing

377

My launcher is unable to see either 4.25.1/.2 or .3 adding a new version only gives 4.24.3 which is != 4.25.3 :slight_smile:

no4253.png
no4253.png806×371 46 KB

378

Restart your launcher and on the same 4.25.0 button you should see “Update” instead of “Launch”. 4.25.3 is not a different engine version, it’s still 4.25.x