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 Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.
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  3. paulieGTR
    Locked Sticky

    Before Posting - Read the FAQs and Use Search Function

    paulieGTR, Nov 10, 2013
    Replies:
    1
    Views:
    84,358
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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WORKAROUND BUG ISSUE CRITICAL
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  1. Mad.Motion

    CRITICAL Fatal error, various crash... logs inside

    Mad.Motion, Sep 22, 2018
    Replies:
    11
    Views:
    193
    Mad.Motion
    Mad.Motion
    Oct 6, 2018
  2. AMG Vilas ®™

    CRITICAL CPU

    AMG Vilas ®™, Jul 11, 2019
    Replies:
    4
    Views:
    189
    Thx1137
    Thx1137
    Jul 11, 2019
  3. jumbo71

    CRITICAL crash on loading

    jumbo71, Jun 13, 2019
    Replies:
    15
    Views:
    189
    jumbo71
    jumbo71
    Jun 19, 2019
  4. Kazie31

    CRITICAL UE4-AC2 fatal error

    Kazie31, Jun 12, 2022
    Replies:
    1
    Views:
    187
    Thomas Fun
    Thomas Fun
    Jun 14, 2022
  5. Martin1230

    CRITICAL "Fatal Error!" "The UE4-AC2 has crashed..."

    Martin1230, Jul 3, 2019
    Replies:
    1
    Views:
    186
    Manuel St
    Manuel St
    Jul 4, 2019
  6. FHarbor

    CRITICAL Fatal error in multiplayer

    FHarbor, May 30, 2019
    Replies:
    9
    Views:
    184
    xrider55
    xrider55
    May 31, 2019
  7. Rolz

    CRITICAL My game freeze or crash details v1.0.2

    Rolz, Jun 9, 2019
    Replies:
    13
    Views:
    184
    dr.dres77
    dr.dres77
    Jun 16, 2019
  8. andrea.chiovato
    Locked

    CRITICAL Fatal error

    andrea.chiovato, Nov 15, 2018
    Replies:
    10
    Views:
    182
    Mauro Delegà
    Mauro Delegà
    Nov 17, 2018
  9. aznshrek88

    CRITICAL UE4-AC2 Game has crashed

    aznshrek88, Sep 22, 2018
    Replies:
    5
    Views:
    181
    AC Support
    AC Support
    Oct 2, 2018
  10. matteos

    CRITICAL UE4-AC2 random crash

    matteos, Jan 12, 2020
    Replies:
    4
    Views:
    179
    unrealnoise
    unrealnoise
    Jan 30, 2020
  11. Luciano Micale

    CRITICAL SA and RC ratings lost

    Luciano Micale, Apr 1, 2020
    Replies:
    3
    Views:
    178
    unpierrot
    unpierrot
    Apr 3, 2020
  12. mainstream

    CRITICAL An unreal process has crashed: UE4-AC2 thread no. 589678

    mainstream, Mar 24, 2020
    Replies:
    1
    Views:
    176
    parginos
    parginos
    Mar 24, 2020
  13. Leo Galán Barlo

    CRITICAL FATAL ERROR

    Leo Galán Barlo, Oct 8, 2018
    Replies:
    8
    Views:
    176
    Leo Galán Barlo
    Leo Galán Barlo
    Oct 15, 2018
  14. Dufloth

    CRITICAL ACC 1.10 CTD

    Dufloth, Oct 23, 2019
    Replies:
    4
    Views:
    175
    geforth
    geforth
    Oct 23, 2019
  15. speedandpower777

    CRITICAL Game Crashes After Starting Any Race For Months

    speedandpower777, Jul 31, 2023
    Replies:
    4
    Views:
    172
    speedandpower777
    speedandpower777
    Aug 7, 2023
  16. arnaud blondeel

    CRITICAL ACC PC craches

    arnaud blondeel, Aug 5, 2023
    Replies:
    2
    Views:
    171
    arnaud blondeel
    arnaud blondeel
    Aug 27, 2023
  17. Bacchulum

    CRITICAL Crash on Startup Since Final Release

    Bacchulum, Jul 18, 2019
    Replies:
    5
    Views:
    171
    lucareale67
    lucareale67
    Feb 2, 2020
  18. maxcoslo

    CRITICAL Fatal Crash

    maxcoslo, Sep 5, 2022
    Replies:
    6
    Views:
    170
    maxcoslo
    maxcoslo
    Sep 20, 2022
  19. David Alicea

    CRITICAL UE4-AC2 The UE4-AC2 Game has crashed and will close

    David Alicea, Oct 16, 2022
    Replies:
    0
    Views:
    169
    David Alicea
    David Alicea
    Oct 16, 2022
  20. Renoufchr

    CRITICAL UE4 Crash HUNG

    Renoufchr, Jun 11, 2020
    Replies:
    8
    Views:
    167
    Renoufchr
    Renoufchr
    Jun 16, 2020
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