[Anti-Cheat Report] Anticheat on Slower PC - 517 Kicks / Lag / Ghost Blocks.

Discussion in 'Help & Support / Errors & Bugs' started by Kozz, Feb 3, 2021.

  1. Kozz

    Developer Builder ⛰️ Ex-President ⚒️⚒️ Gameplay Architect

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    In Game Name:
    Kozz (occurring on PoopDolla's account)
    Short title for your report:
    Anticheat on Slower PC - 517 Kicks / Lag / Ghost Blocks.
    What client are you using:
    Base 1.16.5. No mods, customizations, texture packs, or shaders.​
    Which server were you on:
    Main​
    Which world were you in:
    Rising​
    What time did the kick take place:
    8:45PM CST (Many times all day, 8:00AM-9:00AM CST, and 7:00PM-9:00PM CST)​
    Code received:
    517​
    Description of the issue:
    Getting kicked / placing ghost blocks / lag while placing soul sand. Happens when placing other blocks, too. Also when breaking stone, ores, etc. Most prominent when placing blocks.​
    Reproduction instructions:
    I've narrowed this down to be an issue on a slower PC (not ridiculously slow, but not a gaming PC either.)

    Reproducing this is pretty simple, especially since it's happened at least dozens of times today. Doing just about anything now leads to an anticheat kick eventually, but happens the most when placing items. The placement does not have to be fast, even the default holding right-click speed is actually enough to make this happen.

    The blocks start to lag - e.g, ghost blocks are placed then disappear pretty quickly. After that happens three or four times, anticheat kick follows.

    This is not a network issue. Latency was 65ms, shouldn't be an issue IMO.

    Worth nothing this initially happened when mods were installed - fabric installation, voxel map, mouse wheelie, and easier chests. I removed all mods, went to base 1.16.5 installation, and nothing changed.

    Most important detail is the difference in PC performance. I was not able to reproduce this on my PC, even when on the same account.

    Her PC Specs:

    64-bit Windows 10
    Intel Core i3-6100 CPU @ 2.30GHz
    Intel HD Graphics 520
    8GB ram

    My PC Specs:

    64-bit Windows 10
    Intel Core i7-6700 CPU @ 3.40GHz
    NVidia GeForce GTX 970
    16GB ram

    At this point playing the game on her PC is becoming pretty difficult. Anti-cheat kicks happening every couple of minutes. This has never been an issue until very recently, this started happening about 3 days ago and has got progressively worse.

    Her PC is not super slow - it usually handles Minecraft just fine on lower graphics and render distance. FPS around 30-50, so nothing too laggy.

    We're also on same IP, so can rule out any possibility of a flagged IP/UUID (if Anti-Cheat does that kind of thing). Only difference is the PC as far as I can tell.​
    How many times did you recreate this:
    Probably over 50 times, just today.
    Video evidence:
    Will post video evidence tomorrow - it's late ATM. Pretty uneventful - I'll be right clicking to place soul sand, blocks will start lagging, then will get kicked.​
     
    #1 Kozz, Feb 3, 2021
    Last edited: Feb 3, 2021
  2. Kozz

    Developer Builder ⛰️ Ex-President ⚒️⚒️ Gameplay Architect

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    Tomorrow along with posting video, I'll do some more testing on this as well.

    I already reinstalled MC on the PC (1.16.4 --> 1.16.5).
    I'm more interested to see if this also occurs on my account on the slower PC.
     
  3. NessXXIII

    NessXXIII Pushing the Envelope
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    Thank you for posting this kozz, I’ve been having a similar issue in the last 4 days. Started happening after a recent maintenance.
     
  4. BobbyBlack

    BobbyBlack Community Spokesperson
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    It definitely is not just centered on not great pcs. I have the same issue.
     
  5. Arhinman

    Arhinman Builder
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    I've been experiencing ghost blocks since I joined ECC (so started when we were in 1.15.2 and still occurs now in 1.16.5 with the new anticheat)
    When breaking with an eff7, after 15-25 blocks I can't walk forward (I have to break 1-2 blocks under this, and the ghost block appears).
    Happens with vanilla and fabric (Main)
    I have a GeForce 820M, quite bad
     
    #5 Arhinman, Feb 6, 2021
    Last edited: Feb 6, 2021
  6. andrewkm

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    We've temporarily fixed the 517 issue on our end.
    In the meantime, a report has been filed with the Anti-Cheat developer.

    If you continue to get 517 kicks since this response by me, please do let me know, however it shouldn't happen anymore via the Main and SkyBlock servers.
     
    #6 andrewkm, Feb 7, 2021
    Last edited: Feb 7, 2021
  7. Fronk_the_Fish

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    Issue still present for me while placing blocks:

     
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  8. Kozz

    Developer Builder ⛰️ Ex-President ⚒️⚒️ Gameplay Architect

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    I've been working on some projects, so haven't got time to look into this further.

    This always happened for me when placing soul sand, and then once I was kicked once it seems to raise a flag, and further kicks become much more likely regardless of what you're doing.

    I haven't seen this myself without being kicked for placing soul sand first.

    I've also only tested this with soul sand. If I can get some more time I'd like to see if this issue is started specifically by placing soul sand, or if it can be reproduced (the first kick) by placing other blocks as well.

    Again worth noting I've never seen this on my PC. Only hers, which is odd.

    Any others who have similar issues please provide as much detail as you can about when the first kick happened, this will likely help the anti-cheat developer resolve the issue.
     
    #8 Kozz, Feb 7, 2021
    Last edited: Feb 7, 2021
  9. andrewkm

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    @Fronk_the_Fish
    @Kozz
    @NessXXIII

    I just made some further changes.
    Please test now and let me know if you continue to experience issues after this post.
     
    #9 andrewkm, Feb 7, 2021
    Last edited: Feb 7, 2021