Public error signature

UE4SS Startup Crash in Palworld

A reviewed startup-crash pattern that appears while UE4SS is initializing, before the title screen is available.

Last verified: Jul 17, 2026
Rule version: pw-error-2026.07.17
Signature ID: PW-ERR-0001

PublicVisible in the public library

Needs reviewExcluded from search indexing

ArchivedRetained for history only

HIGH severityPotential impact

Medium confidence · 68%Evidence certainty

Sanitized match boundary

All signals below are public and sanitized. No personal, machine, or network data is shown.

Crash timing

The game exits before the title screen appears.

Strong

Initialization stage

UE4SS initialization begins but does not complete.

Strong

Sanitized exception

The public pattern includes EXCEPTION_ACCESS_VIOLATION.

Strong

Sanitized process

The affected process is Palworld-Win64-Shipping.exe.

Medium

Startup stage · UE4SS initialization · EXCEPTION_ACCESS_VIOLATION

Applies to

Match every environment field before using this signature.

Game version: Palworld 1.0.x
Platform: Windows 10 / 11
Distribution: Steam
Loader: UE4SS 3.0–3.1
Scope: Client-side
Symptoms: Startup crash

Evidence-ranked candidate causes

Ranked by matching evidence, not popularity.

CauseEvidence strengthRelevance

1Storage Helper — missing dependencyUE4SS stops while loading Storage Helper when a required dependency is absent or mismatched.StrongMost likely

2Fast Travel Plus — early initialization conflictThe mod initializes during UE4SS startup and overlaps with loader hooks in reviewed reports.MediumPossible

3Custom patch — incompatible buildA patch built against an older UE4SS API may call a changed function.WeakUnlikely

Suspect mods

Association is not proof of cause.

ModEvidence gradeWhy flagged

Storage HelperConfirmed matchLoader-stage behavior was reproduced within this signature boundary.

Fast Travel PlusPossible associationReports overlap the startup window, but do not prove cause.

My Custom PatchWeak signalThe build is outdated and supporting evidence is limited.

Recovery order

1
Back up your save
Copy the active save folder and note the timestamp before changing loader files or mods.
Stop if the backup cannot be verified.Verify: Open the copied folder and confirm the expected save files are present.
2
Disable Storage Helper only
Remove or disable this mod from the startup path without changing other mods.
Stop if the game will not launch.Verify: Launch once and record whether the title screen appears.
3
Verify one change at a time
Keep the copied save isolated while testing the current loader build.
Stop if the same crash returns.Verify: Compare the new sanitized signals with this match boundary.
4
Check dependencies if needed
Update or restore only the dependency required by the first failing mod.
Stop if instability returns.Verify: Re-enable one mod per launch and stop at the first repeated failure.
5
Run the check again
Analyze a new locally sanitized log after the controlled recovery pass.
Keep the result unresolved if no reviewed signature matches.Verify: Confirm the game reaches the title screen and the prior signal no longer appears.

Unknown means not enough evidence.It is not a safety verdict.

Sources

3 reviewed records

UE4SS release compatibility notesRelease notes · Jul 16, 2026Strong
Reviewed startup sequenceReviewed reproduction · Jul 17, 2026Strong
Sanitized crash-pattern reviewSanitized pattern review · Jul 17, 2026Medium

Read the evidence policy

This signature describes a reviewed match boundary. It does not prove that a loader or related mod caused every similar symptom.

Recovery order

Back up your save

Copy the active save folder and note the timestamp before changing loader files or mods.

Stop if the backup cannot be verified.Verify: Open the copied folder and confirm the expected save files are present.

Disable Storage Helper only

Remove or disable this mod from the startup path without changing other mods.

Stop if the game will not launch.Verify: Launch once and record whether the title screen appears.

Verify one change at a time

Keep the copied save isolated while testing the current loader build.

Stop if the same crash returns.Verify: Compare the new sanitized signals with this match boundary.

Check dependencies if needed

Update or restore only the dependency required by the first failing mod.

Stop if instability returns.Verify: Re-enable one mod per launch and stop at the first repeated failure.

Run the check again

Analyze a new locally sanitized log after the controlled recovery pass.

Keep the result unresolved if no reviewed signature matches.Verify: Confirm the game reaches the title screen and the prior signal no longer appears.

Unknown means not enough evidence.It is not a safety verdict.

Sanitized match boundary

Applies to

Evidence-ranked candidate causes

Suspect mods

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Sanitized match boundary

Applies to

Evidence-ranked candidate causes

Suspect mods