1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory. Do not post "I have the same issue" in an existing thread with a game crash, always open your own thread. Do not PM developers and staff members for personal troubleshooting and support.
  2. As part of our continuous maintenance and improvements to Assetto Corsa Competizione we will be releasing small updates on a regular basis during the esports season which might not go through the usual announcement process detailing the changes until a later version update where these changes will be listed retrospectively.
  3. If ACC doesn't start with an error or the executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, run a Steam integrity check or reinstall the game altogether. Make sure you add the User/Documents/Assetto Corsa Competizione folder to your antivirus/Defender exceptions and exclude it from any file sharing app (GDrive, OneDrive or Dropbox)! The Corsair iCue software is also known to conflict with Input Device initialization, if the game does not start up and you have such devices, please try disabling the iCue software and try again. [file:unknown] [line: 95] secure crt: invalid error is a sign of antivirus interference, while [Pak chunk signing mismatch on chunk] indicates a corrupted installation that requires game file verification.
  4. When reporting an issue with saved games, please always zip and attach your entire User/Documents/Assetto Corsa Competizione/Savegame folder, along with the logs and the crash folder (when reporting related to a crash).
ACC general support Note about silent updates Startup troubleshooting ACC savegame reports

ACC Physics

Bugs and issues about physics

Announcement Title Start Date
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  1. pankykapus
    Locked Sticky

    READ HERE How to Use the Support Forums and Report Issues

    pankykapus, Sep 12, 2018
    Replies:
    1
    Views:
    31,604
    pankykapus
    pankykapus
    Jan 3, 2021
  2. AC Support
    Locked Sticky

    This thread, started by AC Support, has been deleted. Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.
    View
  3. paulieGTR
    Locked Sticky

    Before Posting - Read the FAQs and Use Search Function

    paulieGTR, Nov 10, 2013
    Replies:
    1
    Views:
    84,451
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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CRITICAL WORKAROUND BUG ISSUE
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  1. KZAQ666

    FIXED Porsche 991 II GT3R Rear Wing

    KZAQ666, Oct 27, 2019
    Replies:
    1
    Views:
    229
    SimGuy_1
    SimGuy_1
    Oct 29, 2019
  2. hodrob

    FIXED LocalVelocity in shared memory stopped working

    hodrob, Jul 12, 2019
    Replies:
    10
    Views:
    258
    hosenmatz
    hosenmatz
    Jan 25, 2020
  3. Coanda

    FIXED [1.3] Tyre Set

    Coanda, Feb 4, 2020
    Replies:
    3
    Views:
    257
    GCCRacer
    GCCRacer
    Feb 7, 2020
  4. Coanda

    FIXED [1.0.10] Audi R8 Bumpstop Range (**Fixed 1.3.3**)

    Coanda, Oct 1, 2019
    Replies:
    8
    Views:
    559
    Coanda
    Coanda
    Feb 15, 2020
  5. Coanda

    FIXED [EA - 1.3.5] Wheel Rate Unit - Setup Screen (**fixed 1.3.10**)

    Coanda, Feb 18, 2020
    Replies:
    1
    Views:
    280
    Coanda
    Coanda
    Apr 15, 2020
  6. AlleyViper

    FIXED Huracán ST's Paul Ricard Agressive Setup has higher aero

    AlleyViper, Dec 19, 2019
    Replies:
    2
    Views:
    139
    AlleyViper
    AlleyViper
    Apr 15, 2020
  7. pamoer

    FIXED Wet tyres changes setup parameters?

    pamoer, Apr 16, 2020
    Replies:
    2
    Views:
    141
    david m
    david m
    Apr 17, 2020
  8. Tobias Queck

    FIXED Curb behaviour

    Tobias Queck, Sep 27, 2018 ... 41 42 43
    Replies:
    840
    Views:
    37,826
    Dewald Nel
    Dewald Nel
    Apr 20, 2020
  9. Günthar Rowe

    FIXED v1.3.10 Lamborghini Huracan ST tyre temps

    Günthar Rowe, Apr 16, 2020
    Replies:
    9
    Views:
    294
    FezzantPlucka
    FezzantPlucka
    Apr 28, 2020
  10. Gary Munson

    FIXED Wheel direction Bug

    Gary Munson, May 14, 2020
    Replies:
    2
    Views:
    232
    Aristotelis
    Aristotelis
    May 15, 2020
  11. PetetheSweet

    FIXED Weird stuff happening post v1.4.2 [Setup menu, reset and session transition issue - merged threads]

    PetetheSweet, May 9, 2020 ... 3 4 5
    Replies:
    85
    Views:
    3,107
    Glovepup
    Glovepup
    May 25, 2020
  12. ★ RyRy

    FIXED race-ending tyre bug [wear-driven puncture ruining suspension geometry]

    ★ RyRy, Sep 2, 2020
    Replies:
    3
    Views:
    228
    ★ RyRy
    ★ RyRy
    Sep 3, 2020
  13. Adnan0

    FIXED Ignition state in shared memory

    Adnan0, Jun 7, 2020
    Replies:
    2
    Views:
    181
    pamoer
    pamoer
    Sep 17, 2020
  14. John Dalton

    FIXED BMW M6 Wet Setup Wrong Brake Rear Pads - Monza

    John Dalton, May 22, 2020
    Replies:
    2
    Views:
    187
    Elrann
    Elrann
    Oct 25, 2020
  15. Brinkyeti

    FIXED Porsche 991.2 no WET setup for Laguna Seca

    Brinkyeti, Oct 26, 2020
    Replies:
    5
    Views:
    179
    Brinkyeti
    Brinkyeti
    Nov 3, 2020
  16. Ryan Rennoir

    FIXED [FIXED in 1.6.2] Tire / suspension stuck inside the car after hitting curb

    Ryan Rennoir, Nov 21, 2020
    Replies:
    7
    Views:
    275
    Ryan Rennoir
    Ryan Rennoir
    Nov 24, 2020
  17. azzah

    FIXED 1.6.3 - 2018 porsche on 2020 track: wet tires pick up too much heat from brakes

    azzah, Dec 2, 2020
    Replies:
    2
    Views:
    144
    azzah
    azzah
    Dec 2, 2020
  18. Coanda

    FIXED 1.6.3 - BMW GT3 Aggressive Setup

    Coanda, Dec 1, 2020
    Replies:
    1
    Views:
    220
    Aristotelis
    Aristotelis
    Dec 3, 2020
  19. n1lyn

    FIXED Varying Setup Calculation

    n1lyn, May 16, 2020 ... 2 3 4
    Replies:
    63
    Views:
    3,227
    SANDER van DORN [GER]
    SANDER van DORN [GER]
    Dec 3, 2020
  20. m4karov

    FIXED Rev limiter behaivior Aston V8

    m4karov, May 4, 2020 ... 2 3 4
    Replies:
    62
    Views:
    2,061
    khrop
    khrop
    Feb 9, 2021
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