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

Physics Bugs & Issues

Discussions related to physics issues and feedback

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:
    31,490
    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:
    84,390
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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WORKAROUND CRITICAL BUG ISSUE
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  1. Bailey

    KNOWN ISSUE Ai continue to race after they reach number of laps

    Bailey, Feb 28, 2015
    Replies:
    2
    Views:
    69
    Bailey
    Bailey
    Feb 28, 2015
  2. KillZoneGB

    KNOWN ISSUE Special event touring car 155 alfa

    KillZoneGB, Mar 13, 2015
    Replies:
    2
    Views:
    76
    KillZoneGB
    KillZoneGB
    Mar 13, 2015
  3. Miguel Garcia

    KNOWN ISSUE Abarth 500 problem wheels.

    Miguel Garcia, Sep 6, 2014
    Replies:
    1
    Views:
    80
    Alfredo Fernandes
    Alfredo Fernandes
    Sep 7, 2014
  4. M Waechter

    KNOWN ISSUE rolling car after hitting "Restart" & an other minor thing

    M Waechter, Mar 18, 2014
    Replies:
    1
    Views:
    92
    NeverKrash
    NeverKrash
    Jul 12, 2014
  5. Schnipp

    KNOWN ISSUE DRS stays open after leaving DRS-Zone

    Schnipp, Jul 19, 2016
    Replies:
    0
    Views:
    101
    Schnipp
    Schnipp
    Jul 19, 2016
  6. Bailey

    KNOWN ISSUE Lotus 2 Eleven Twisted Wheel When Full Lock

    Bailey, Dec 19, 2013
    Replies:
    3
    Views:
    111
    B_U_R_I
    B_U_R_I
    Dec 19, 2013
  7. Schnipp

    KNOWN ISSUE Monza 66 full lap: AI braking for cars on parallel straight

    Schnipp, Aug 30, 2016
    Replies:
    4
    Views:
    111
    Kurt Verlin
    Kurt Verlin
    Aug 30, 2016
  8. Arbuzzz

    KNOWN ISSUE Damage time fix at pit-stop - only 1 sec

    Arbuzzz, Apr 24, 2016
    Replies:
    0
    Views:
    121
    Arbuzzz
    Arbuzzz
    Apr 24, 2016
  9. tkrisz2

    KNOWN ISSUE Car is rolling in gear , after stalling!

    tkrisz2, Jan 11, 2014
    Replies:
    1
    Views:
    121
    Rigel
    Rigel
    Jan 11, 2014
  10. Schnipp

    KNOWN ISSUE Timing at Monza 66 Full

    Schnipp, Sep 1, 2016
    Replies:
    1
    Views:
    124
    Patcha
    Patcha
    Sep 1, 2016
  11. P Johann

    KNOWN ISSUE Cars shaking on some tracks

    P Johann, Oct 28, 2014
    Replies:
    2
    Views:
    126
    P Johann
    P Johann
    Oct 28, 2014
  12. Chazz Ranger

    KNOWN ISSUE AI sometimes running out of fuel on Nords Endurance

    Chazz Ranger, Jul 10, 2016
    Replies:
    7
    Views:
    129
    Chazz Ranger
    Chazz Ranger
    Oct 29, 2016
  13. Abysmal

    KNOWN ISSUE Automatic clutch engage/disengage bug

    Abysmal, Aug 15, 2016
    Replies:
    0
    Views:
    132
    Abysmal
    Abysmal
    Aug 15, 2016
  14. mach08

    KNOWN ISSUE Load Forces Bug

    mach08, Dec 24, 2013
    Replies:
    4
    Views:
    135
    mach08
    mach08
    Dec 24, 2013
  15. LesFleursDuMal

    KNOWN ISSUE Drift Track race with 6 cars produces an explosive start

    LesFleursDuMal, Mar 18, 2014
    Replies:
    1
    Views:
    136
    Kevin Wolfe
    Kevin Wolfe
    Mar 20, 2014
  16. cimenTo
    Locked

    KNOWN ISSUE Wheels not turning, no reverse lights

    cimenTo, Nov 8, 2013
    Replies:
    1
    Views:
    138
    AC Support
    AC Support
    Nov 8, 2013
  17. MrKinch

    KNOWN ISSUE Suspension Jitter

    MrKinch, May 23, 2017
    Replies:
    4
    Views:
    146
    MrKinch
    MrKinch
    May 23, 2017
  18. gh3go

    KNOWN ISSUE Clib & slope Monza & Imola

    gh3go, Feb 9, 2014
    Replies:
    3
    Views:
    150
    Aristotelis
    Aristotelis
    Feb 11, 2014
  19. ears1991

    KNOWN ISSUE Ai bug at spa

    ears1991, Mar 14, 2015
    Replies:
    3
    Views:
    167
    ToastyClear
    ToastyClear
    Mar 20, 2015
  20. Berney Villers Jr

    KNOWN ISSUE Longitudinal Speed goes negative when turning slowly

    Berney Villers Jr, Dec 12, 2013
    Replies:
    2
    Views:
    167
    AC Support
    AC Support
    Dec 13, 2013
Showing threads 1 to 20 of 57

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