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:
    31,578
    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 Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.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:
    84,439
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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CRITICAL WORKAROUND BUG ISSUE
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  1. Vuptrox_Paul

    NO ISSUE Ferrari GT3 non Evo BoP 2020 bug

    Vuptrox_Paul, Dec 19, 2020
    Replies:
    1
    Views:
    172
    Thomas Fun
    Thomas Fun
    Dec 20, 2020
  2. JOSE2K2*

    NO ISSUE Posible bug Nurburgring 2020 Aston v8 gt3

    JOSE2K2*, Dec 29, 2020
    Replies:
    4
    Views:
    174
    JOSE2K2*
    JOSE2K2*
    Dec 29, 2020
  3. Jura 2

    NO ISSUE Audi R8 LMS Manual Clutch problem

    Jura 2, Oct 27, 2019
    Replies:
    11
    Views:
    245
    MerlinCooper
    MerlinCooper
    Dec 29, 2020
  4. Ryuku/

    NO ISSUE NSX Evo Rod Length inconsistency

    Ryuku/, Jan 15, 2021
    Replies:
    12
    Views:
    419
    Speeddmon91
    Speeddmon91
    Jan 25, 2021
  5. Rodrigo Melo

    NO ISSUE BoP 2020 cars

    Rodrigo Melo, Jan 3, 2021
    Replies:
    9
    Views:
    809
    Rodrigo Melo
    Rodrigo Melo
    Feb 6, 2021
  6. Skaven Zverov

    NO ISSUE ACC Motec Wrong Data

    Skaven Zverov, Sep 17, 2020
    Replies:
    8
    Views:
    346
    TheFinalBoss
    TheFinalBoss
    Feb 17, 2021
  7. Garnet

    NO ISSUE Pitch is backwards....

    Garnet, Feb 20, 2021
    Replies:
    5
    Views:
    273
    Garnet
    Garnet
    Feb 21, 2021
  8. cimohr

    NO ISSUE Tyre Temperature drops very fast in SinglePlayer Sessions [User set wet track]

    cimohr, Mar 16, 2021
    Replies:
    9
    Views:
    133
    Dewald Nel
    Dewald Nel
    Mar 17, 2021
  9. Ste1155

    NO ISSUE McLaren 720s Zandvoort- tyre heat

    Ste1155, Mar 22, 2021
    Replies:
    1
    Views:
    86
    GONKO
    GONKO
    Mar 23, 2021
  10. RAUL RICO RIQUELME

    NO ISSUE Laguna Seca Curb Of Death

    RAUL RICO RIQUELME, Mar 21, 2021
    Replies:
    16
    Views:
    349
    Salvatore Amato
    Salvatore Amato
    Mar 26, 2021
  11. Buz Murdock

    NO ISSUE Camber changes in .json file when setup is saved

    Buz Murdock, Apr 19, 2021
    Replies:
    3
    Views:
    157
    Buz Murdock
    Buz Murdock
    Apr 20, 2021
  12. rapsoo

    NO ISSUE hotlap tyre reset

    rapsoo, Apr 18, 2021
    Replies:
    3
    Views:
    157
    Freddie Seng
    Freddie Seng
    Apr 21, 2021
  13. SyntaXx

    NO ISSUE BMW M6 GT3 2017 Ignition Issue

    SyntaXx, May 12, 2021
    Replies:
    2
    Views:
    201
    Gevatter
    Gevatter
    May 14, 2021
  14. Furia | DanCauS

    NO ISSUE tires

    Furia | DanCauS, May 25, 2021
    Replies:
    0
    Views:
    168
    Furia | DanCauS
    Furia | DanCauS
    May 25, 2021
  15. f1200racer

    NO ISSUE Tire Pressure after 1.7.10 [No change to slicks and pressure sensitivity]

    f1200racer, Jun 4, 2021
    Replies:
    1
    Views:
    266
    Radfahrer
    Radfahrer
    Jun 8, 2021
  16. Saetta McQueen

    NO ISSUE McLaren 720 GT3 Camber

    Saetta McQueen, Nov 11, 2021
    Replies:
    2
    Views:
    194
    Saetta McQueen
    Saetta McQueen
    Nov 11, 2021
  17. alexeiu
    Locked

    NO ISSUE Toe car bug (visual or calculation).

    alexeiu, Jan 23, 2022
    Replies:
    8
    Views:
    764
    pankykapus
    pankykapus
    Jan 23, 2022
  18. Noer

    NO ISSUE Weather transitions bugged since 1.8?

    Noer, Jan 23, 2022
    Replies:
    7
    Views:
    292
    Muscleheim
    Muscleheim
    Jan 28, 2022
  19. larrywax

    NO ISSUE power loss on some servers [Stability Control enabled by user]

    larrywax, Dec 30, 2021
    Replies:
    17
    Views:
    356
    CoReTiMex3
    CoReTiMex3
    Jan 7, 2023
  20. beckylou_1

    NO ISSUE v1.9 Tyre grip falls off a cliff

    beckylou_1, May 1, 2023
    Replies:
    4
    Views:
    372
    Olduvai
    Olduvai
    May 11, 2023
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