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 Troubleshooting

Please report here crashes and general issues

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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:
    31,425
    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 Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.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:
    84,357
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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WORKAROUND BUG ISSUE CRITICAL
Page 2 of 117
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Last Message
  1. Luis Branco
    Locked

    SOFTWARE/HARDWARE ISSUE Nvidia Drivers 445.75 - Image Sharpening causes UE Crash

    Luis Branco, Mar 23, 2020 ... 2
    Replies:
    35
    Views:
    2,781
    Peter Henneberg
    Peter Henneberg
    Mar 28, 2020
  2. SamuTnT

    SOFTWARE/HARDWARE ISSUE Game won't launch after 1.7.0 and last hotfix [Corrupted installation/.pak file]

    SamuTnT, Feb 13, 2021 ... 2
    Replies:
    34
    Views:
    488
    pankykapus
    pankykapus
    Mar 6, 2021
  3. Zenzenzic

    FIXED Game hangs when loading Career or Champs when auto-saved between sessions

    Zenzenzic, Nov 24, 2021 ... 2
    Replies:
    33
    Views:
    876
    Besnier
    Besnier
    Dec 13, 2021
  4. Technac

    System Crash with BIOS reset after starting a race

    Technac, Jan 12, 2020 ... 2
    Replies:
    33
    Views:
    334
    Technac
    Technac
    Jan 16, 2020
  5. DanRZ

    REPORTED! UE4-AC2 Fatal Error Crash at every start

    DanRZ, Nov 25, 2021 ... 2
    Replies:
    31
    Views:
    1,128
    DanRZ
    DanRZ
    Nov 30, 2021
  6. zzjorzz

    CRITICAL Sudden microstutters

    zzjorzz, Nov 18, 2019 ... 2
    Replies:
    31
    Views:
    939
    Flavus
    Flavus
    Dec 8, 2019
  7. Goaqi

    CRITICAL Unreal Engine is exiting due to D3D device being lost.

    Goaqi, May 3, 2020 ... 2
    Replies:
    30
    Views:
    394
    GONKO
    GONKO
    May 13, 2020
  8. glock2004

    CRITICAL Savegame files are huge and loading takes ages

    glock2004, Mar 24, 2020 ... 2
    Replies:
    30
    Views:
    279
    Neilski
    Neilski
    Mar 25, 2020
  9. Ninety3

    FIXED Crash when saving car setup, controls config or video profile

    Ninety3, Feb 5, 2020 ... 2
    Replies:
    30
    Views:
    656
    Gopher04
    Gopher04
    Feb 5, 2020
  10. ..LeRenard!

    WORKAROUND Game doesn't start: Fatal error: [File:Unknown] [Line: 92]; SECURE CRT: Invalid parameter detected.

    ..LeRenard!, Jun 14, 2019 ... 2
    Replies:
    30
    Views:
    917
    ..LeRenard!
    ..LeRenard!
    Jul 10, 2019
  11. Kokeypoo

    SOFTWARE/HARDWARE ISSUE Game darker after update [Custom engine.ini, remove AppData/Local/AC2 folder and let it regenerate]

    Kokeypoo, Nov 24, 2021 ... 2
    Replies:
    29
    Views:
    1,016
    Perell0ne
    Perell0ne
    Dec 15, 2021
  12. RearNKD

    SOFTWARE/HARDWARE ISSUE Game doesn't start up, no logs generated [Resolved by Win reinstall]

    RearNKD, Nov 24, 2021 ... 2
    Replies:
    29
    Views:
    630
    RearNKD
    RearNKD
    Dec 1, 2021
  13. dim98vam

    SOFTWARE/HARDWARE ISSUE Fatal Error UE4-AC2 leading to blue Screen [RAM failure]

    dim98vam, Jan 1, 2021 ... 2
    Replies:
    29
    Views:
    373
    dim98vam
    dim98vam
    Jan 9, 2021
  14. Jim Brailsford

    ISSUE CPU temps

    Jim Brailsford, May 31, 2019 ... 2
    Replies:
    29
    Views:
    570
    JnJ | Rayleigh
    JnJ | Rayleigh
    Jun 7, 2019
  15. Kwisatz Haderach
    Locked

    FIXED UE4 Fatal Error 1.9 --- CP race registration

    Kwisatz Haderach, Apr 19, 2023 ... 2
    Replies:
    27
    Views:
    777
    NewClearBomb
    NewClearBomb
    Apr 27, 2023
  16. Shermoond

    SOFTWARE/HARDWARE ISSUE I Just bought the game , It wont open [Corsair driver issue + doc folder synced under OneDrive]

    Shermoond, Oct 31, 2021 ... 2
    Replies:
    27
    Views:
    465
    Shermoond
    Shermoond
    Jan 11, 2022
  17. luke74

    SOFTWARE/HARDWARE ISSUE C R A S H again [on game startup due to corrupted windows user profile / access settings]

    luke74, Jul 19, 2020 ... 2
    Replies:
    27
    Views:
    295
    xaotik
    xaotik
    Jul 27, 2020
  18. SimRacer925

    CRITICAL V.1.0.0 - MASSIVE FPS Hit

    SimRacer925, May 29, 2019 ... 2
    Replies:
    27
    Views:
    1,220
    F1Aussie
    F1Aussie
    May 30, 2019
  19. ajclarke

    SOFTWARE/HARDWARE ISSUE Crashing on launch - black screen [Corsair K65 keyboard blocking directinput control enumeration]

    ajclarke, Mar 7, 2021 ... 2
    Replies:
    26
    Views:
    235
    ajclarke
    ajclarke
    Mar 9, 2021
  20. waynevegas
    Locked

    WORKAROUND Fatal error during gameplay

    waynevegas, Sep 15, 2018 ... 2
    Replies:
    26
    Views:
    561
    waynevegas
    waynevegas
    Dec 24, 2018
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