[Bug] any SetTimecycleModifier call darkens interiors, and ClearTimecycleModifier does not undo it

[urmomxd1]

Summary

Inside a base-game interior (personally verified in the Ammu-Nation gun club on Strawberry ave, interior 137729), one call to SetTimecycleModifier makes the interior go dark straight away: the ceilings and upper walls lose their fill light and only the area right around the lights stays lit. ClearTimecycleModifier() does not bring it back; it stays dark until the player reconnects.

It happens with any name:

• SetTimecycleModifier('hud_def_blur') with SetTimecycleModifierStrength(1.0): the screen blurs for a moment and simultaneously the "darkness" kicks on.
• SetTimecycleModifier('default') (a name with no modifier): no blur, the same darkness.

Afterwards GetTimecycleModifierIndex(), GetExtraTimecycleModifierIndex() and GetTimecycleTransitionModifierIndex() all return -1, so no modifier is held, yet the interior stays dark.

This started with the 10/13/26 client update. Before it, and on GTA V Legacy FiveM today, the same interiors look normal. Qbox servers hit it on every join, because qbx_core's character selection calls SetTimecycleModifier('hud_def_blur') and then SetTimecycleModifier('default').

Issue type

Client

Repro rate

Always

Server build version

FXServer-early-access b169 win32

OS

Windows 10 22H2

CPU

No response

GPU

No response

RAM

No response

Storage type

None

Connection type

None

ISP and bandwidth

No response

DxDiag

No response

Network graph

No response

Platform

None

OS version / distribution

No response

CPU

No response

RAM

No response

Using txAdmin?

None

Hosting provider

None

Machine type

None

/perf endpoint output

No response

DDoS protection

No response

ulimit -n value (Linux only)

No response

Docker Compose file (Docker only)

No response

Steps to Reproduce

1. Start a server on the latest artifacts with the CFX default recipe, and add a resource with this client script:

   RegisterCommand('tcdefault', function() SetTimecycleModifier('default') end, false)
   RegisterCommand('tcclear', function() ClearTimecycleModifier() ClearExtraTimecycleModifier() end, false)

2. Join, go into the Strawberry Ammu-Nation gun club (19.1, -1110.0, 29.8) and look at the ceiling: it is lit normally.
3. Run /tcdefault: the interior goes dark at once.
4. Run /tcclear: it stays dark.

Expected Behavior

The interior keeps its normal lighting once the script modifier is cleared, as it did before the 10/13/26 update and as it still does on Legacy.

Actual Behavior

Interior goes dark. The ceilings and upper walls lose their fill light and only the area right around the lights stays lit

Evidence

No response

Additional Context

No response

[Nobelium-cfx]

Thanks for the report! Looking into it

[Nobelium-cfx]

Fix is ready and will be merged with the next patch

[Gogsi]

Hello,
A fix for this issue has been implemented in November 11 patch for FiveM for GTAV Enhanced. Please try again and let us know if the issue persists. Thanks for your help!