[BUG - Release] UE4SS Causes Palworld to crash

[JRDK92]

Branch or Release
The Tag for the Release you are using, or the commit you used if you built from source yourself.
v3.0.0

Game and Engine Version
Game where the bug occurred, and the UE engine version of the game.
Palworld. Unknown UE Engine version

Describe the bug
A clear and concise description of what the bug is.
When launching the game, game immediately crashes with the following errors. I re-installed the mods, but still didn't work... I provided the crashes.zip file.

nhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x000001b336ced058

UE4SS
UE4SS
UE4SS
UE4SS
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
UE4SS
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
UE4SS
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
UE4SS
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
Palworld_WinGDK_Shipping
kernel32
ntdll

Mods directory
A zip of your Mods folder if you've installed any mods that don't come with UE4SS by default

vuxReduceFoodSpoilRate120 - https://www.nexusmods.com/palworld/mods/232

• https://www.nexusmods.com/palworld/mods/11?tab=posts&BH=0

Mods.zip

To Reproduce
Steps to reproduce the behavior:

1. Launch game
2. Attempt UHT Dump
3. See error in log

Expected behavior
A clear and concise description of what you expected to happen.

The game should launch

Screenshots and UE4SS Log
If applicable, add screenshots to help explain your problem, and upload the log.
Crashes.zip

Desktop (please complete the following information):

• OS: [e.g. Win10, Win11]

Additional context
Add any other context about the problem here.

[Afleeh]

I also have this crash.

It is persistent once it happens and only uninstalling UE4SS resolves it. I can sometimes get some mods to work and at one time it was stable with 4 mods, but after one crash it crashes until everything is uninstalled.

Tested on reinstalled fresh palworld as well.

the reading address is random/different each time

VCRUNTIME140
UE4SS
UE4SS
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
UE4SS
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
UE4SS
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
UE4SS
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
Palworld_Win64_Shipping
kernel32
ntdll

[noxbestia]

Adding my voice to the list of people experiencing this.

[Velathari]

Can confirm, I boot the game, close the intrusive popup, select multiplayer, close the second intrusive popup, select recent servers, select my server, password the box, hit the connect button, hit the redundant confirm button and at some point during the loading screen it crashes with the above crash log. Brute force reboot and retry eventually connects to server without crash.

[noxbestia]

I cleared my shader cache and I installed the zdev version of UE4SS. The problem has not yet returned after several straight hours of gaming.

[Buckminsterfullerene02]

@jsauerland @Velathari @Afleeh try setting bUseUObjectArrayCache = false in UE4SS-settings.ini

[Buckminsterfullerene02]

Can confirm, I boot the game, close the intrusive popup, select multiplayer, close the second intrusive popup, select recent servers, select my server, password the box, hit the connect button, hit the redundant confirm button and at some point during the loading screen it crashes with the above crash log. Brute force reboot and retry eventually connects to server without crash.

Those "instrusive popups" are the console and GUI windows, which is only enabled by default in the zDEV version of UE4SS - i.e. the version that is targeted at mod developers only. As you're clearly an end-user, I'm curious why you are using that version? Is the mod you're using telling you to use that?

[noxbestia]

I believe that poster meant the two popups from the game, not UE4SS.

[UE4SS]

Can confirm, I boot the game, close the intrusive popup, select multiplayer, close the second intrusive popup, select recent servers, select my server, password the box, hit the connect button, hit the redundant confirm button and at some point during the loading screen it crashes with the above crash log. Brute force reboot and retry eventually connects to server without crash.

Those "instrusive popups" are the console and GUI windows, which is only enabled by default in the zDEV version of UE4SS - i.e. the version that is targeted at mod developers only. As you're clearly an end-user, I'm curious why you are using that version? Is the mod you're using telling you to use that?

They might've seen a reply by me to another issue where I asked someone to use the zDEV version because I couldn't get their dmp file working with the non-dev version.
I've also decided to always link to zDEV version to people whenever I request a user to test any particular build, just to make sure the dll & pdb match the ones I have so that I can actually do some debugging.

[Buckminsterfullerene02]

I believe that poster meant the two popups from the game, not UE4SS.

Oh actually that would make sense because in the 3.0.0 release there is a bug where closing the GUI window crashes the game (fixed in next release hopefully being done today btw).

[noxbestia]

Can confirm, I boot the game, close the intrusive popup, select multiplayer, close the second intrusive popup, select recent servers, select my server, password the box, hit the connect button, hit the redundant confirm button and at some point during the loading screen it crashes with the above crash log. Brute force reboot and retry eventually connects to server without crash.

Those "instrusive popups" are the console and GUI windows, which is only enabled by default in the zDEV version of UE4SS - i.e. the version that is targeted at mod developers only. As you're clearly an end-user, I'm curious why you are using that version? Is the mod you're using telling you to use that?

They might've seen a reply by me to another issue where I asked someone to use the zDEV version because I couldn't get their dmp file working with the non-dev version. I've also decided to always link to zDEV version to people whenever I request a user to test any particular build, just to make sure the dll & pdb match the ones I have so that I can actually do some debugging.

For clarification, I am the one who cleared their shader cache and installed the zDEV version, after digging into other bug reports for possible solutions.

BTW, clearing the shader cache fixes the "bending trees" problem that the game itself develops now and then.

[JRDK92]

The only "fix" I've found for this is a complete re-install of Palworld, and then, reinstalling UE4SS.

[Buckminsterfullerene02]

Can confirm, I boot the game, close the intrusive popup, select multiplayer, close the second intrusive popup, select recent servers, select my server, password the box, hit the connect button, hit the redundant confirm button and at some point during the loading screen it crashes with the above crash log. Brute force reboot and retry eventually connects to server without crash.

Those "instrusive popups" are the console and GUI windows, which is only enabled by default in the zDEV version of UE4SS - i.e. the version that is targeted at mod developers only. As you're clearly an end-user, I'm curious why you are using that version? Is the mod you're using telling you to use that?

They might've seen a reply by me to another issue where I asked someone to use the zDEV version because I couldn't get their dmp file working with the non-dev version. I've also decided to always link to zDEV version to people whenever I request a user to test any particular build, just to make sure the dll & pdb match the ones I have so that I can actually do some debugging.

For clarification, I am the one who cleared their shader cache and installed the zDEV version, after digging into other bug reports for possible solutions.

BTW, clearing the shader cache fixes the "bending trees" problem that the game itself develops now and then.

The only "fix" I've found for this is a complete re-install of Palworld, and then, reinstalling UE4SS.

So setting bUseUObjectArrayCache = false in UE4SS-settings.ini didn't work for either?

[JRDK92]

Can confirm, I boot the game, close the intrusive popup, select multiplayer, close the second intrusive popup, select recent servers, select my server, password the box, hit the connect button, hit the redundant confirm button and at some point during the loading screen it crashes with the above crash log. Brute force reboot and retry eventually connects to server without crash.

Those "instrusive popups" are the console and GUI windows, which is only enabled by default in the zDEV version of UE4SS - i.e. the version that is targeted at mod developers only. As you're clearly an end-user, I'm curious why you are using that version? Is the mod you're using telling you to use that?

They might've seen a reply by me to another issue where I asked someone to use the zDEV version because I couldn't get their dmp file working with the non-dev version. I've also decided to always link to zDEV version to people whenever I request a user to test any particular build, just to make sure the dll & pdb match the ones I have so that I can actually do some debugging.

For clarification, I am the one who cleared their shader cache and installed the zDEV version, after digging into other bug reports for possible solutions.
BTW, clearing the shader cache fixes the "bending trees" problem that the game itself develops now and then.

The only "fix" I've found for this is a complete re-install of Palworld, and then, reinstalling UE4SS.

So setting bUseUObjectArrayCache = false in UE4SS-settings.ini didn't work for either?

I added it just now, but admittedly, this is after I did a full install of the entire game + UE4SS just for a "fresh start". Game is running fine now.

[Do0ks]

Following this threads advice it still errors with palworld_win64_shipping error on start up for me. Hopefully it's not a issue in further releases.