[Bug] 笔画异常消失

[CreeperAWA]

软件版本 | App Version

ICC CE 1.7.18.1

操作系统及版本 | OS & Version

Windows11 24H2 x64

问题描述 | Description

笔迹书写后有概率消失
该问题在 ICC CE 1.7.18.0 版本表现为每一笔写完以后一定立即消失，现在表现为有个别笔画会消失

复现步骤 | Steps to Reproduce

1. 开启 ICC CE，使用一次白板（中间有用批注）
2. 关掉白板，静置一会（不确定是不是跟时间有关，如果是的话可能要一小时以上）
3. 再打开部分笔画会吞，表现为书写过程中可以看到墨迹，抬笔后立即消失

期望结果 | Expected Behavior

正常书写

其他补充信息 | Additional Info

No response

[CJKmkp]

这个问题难以复现

[CJKmkp]

在17180中我这三周的使用中并未出现上述问题

[CreeperAWA]

81 我今天尝试关闭墨迹纠正以后似乎就正常了，可能是墨迹纠正的锅
这是我使用的配置文件

{
  "advanced": {
    "isSpecialScreen": true,
    "isQuadIR": true,
    "touchMultiplier": 0.25,
    "nibModeBoundsWidth": 6,
    "fingerModeBoundsWidth": 8,
    "nibModeBoundsWidthThresholdValue": 2.5,
    "fingerModeBoundsWidthThresholdValue": 2.5,
    "nibModeBoundsWidthEraserSize": 0.8,
    "fingerModeBoundsWidthEraserSize": 0.8,
    "eraserBindTouchMultiplier": true,
    "isLogEnabled": true,
    "isSaveLogByDate": true,
    "isEnableFullScreenHelper": false,
    "isEnableEdgeGestureUtil": false,
    "edgeGestureUtilOnlyAffectBlackboardMode": false,
    "isEnableForceFullScreen": false,
    "isEnableResolutionChangeDetection": false,
    "isEnableDPIChangeDetection": false,
    "isSecondConfirmWhenShutdownApp": false,
    "isEnableAvoidFullScreenHelper": false,
    "isAutoBackupBeforeUpdate": true,
    "isAutoBackupEnabled": true,
    "autoBackupIntervalDays": 7,
    "lastAutoBackupTime": "2025-12-12T11:19:41.4658669+08:00",
    "isNoFocusMode": false,
    "isAlwaysOnTop": true,
    "enableUIAccessTopMost": false,
    "windowMode": true
  },
  "appearance": {
    "isEnableDisPlayNibModeToggler": false,
    "isColorfulViewboxFloatingBar": false,
    "viewboxFloatingBarScaleTransformValue": 1.0,
    "floatingBarImg": 12,
    "customFloatingBarImgs": [
      {
        "name": "Castorice",
        "filePath": "D:\\Program Files\\InkCanvasForClass CE\\pictures\\icons\\b46d193a-9c7d-4aff-8a9d-d9c8411be3ac.ico"
      }
    ],
    "viewboxFloatingBarOpacityValue": 0.8,
    "enableTrayIcon": true,
    "viewboxFloatingBarOpacityInPPTValue": 0.8,
    "enableViewboxBlackBoardScaleTransform": false,
    "isTransparentButtonBackground": true,
    "isShowExitButton": true,
    "isShowEraserButton": true,
    "enableTimeDisplayInWhiteboardMode": true,
    "enableChickenSoupInWhiteboardMode": false,
    "isShowHideControlButton": false,
    "unFoldButtonImageType": 0,
    "isShowLRSwitchButton": false,
    "enableSplashScreen": false,
    "splashScreenStyle": 1,
    "isShowQuickPanel": true,
    "chickenSoupSource": 1,
    "isShowModeFingerToggleSwitch": true,
    "theme": 0,
    "useLegacyFloatingBarUI": false,
    "isShowShapeButton": true,
    "isShowUndoButton": true,
    "isShowRedoButton": true,
    "isShowClearButton": true,
    "isShowWhiteboardButton": true,
    "isShowHideButton": true,
    "isShowLassoSelectButton": true,
    "isShowClearAndMouseButton": true,
    "eraserDisplayOption": 1,
    "isShowQuickColorPalette": true,
    "quickColorPaletteDisplayMode": 1,
    "enableHotkeysInMouseMode": false
  },
  "automation": {
    "autoSavedStrokesLocation": "D:\\Users\\Seewo\\Documents\\Ink Canvas",
    "autoDelSavedFiles": true,
    "autoDelSavedFilesDaysThreshold": 15,
    "isSaveFullPageStrokes": true,
    "isAutoEnterAnnotationModeWhenExitFoldMode": false,
    "isAutoFoldWhenExitWhiteboard": false,
    "isAutoFoldInEasiNote": true,
    "isAutoFoldInEasiNoteIgnoreDesktopAnno": true,
    "isAutoFoldInEasiCamera": true,
    "isAutoFoldInEasiNote3": false,
    "isAutoFoldInEasiNote3C": false,
    "isAutoFoldInEasiNote5C": true,
    "isAutoFoldInSeewoPincoTeacher": false,
    "isAutoFoldInHiteTouchPro": false,
    "isAutoFoldInHiteLightBoard": false,
    "isAutoFoldInHiteCamera": false,
    "isAutoFoldInWxBoardMain": false,
    "isAutoFoldInOldZyBoard": false,
    "isAutoFoldInMSWhiteboard": true,
    "isAutoFoldInAdmoxWhiteboard": false,
    "isAutoFoldInAdmoxBooth": false,
    "isAutoFoldInQPoint": false,
    "isAutoFoldInYiYunVisualPresenter": false,
    "isAutoFoldInMaxHubWhiteboard": false,
    "isAutoFoldInPPTSlideShow": false,
    "isAutoFoldAfterPPTSlideShow": false,
    "isAutoKillPptService": false,
    "isAutoKillEasiNote": false,
    "isAutoKillHiteAnnotation": false,
    "isAutoKillVComYouJiao": false,
    "isAutoKillSeewoLauncher2DesktopAnnotation": false,
    "isAutoKillInkCanvas": false,
    "isAutoKillICA": false,
    "isAutoKillIDT": false,
    "isSaveScreenshotsInDateFolders": true,
    "isAutoSaveStrokesAtScreenshot": true,
    "isAutoSaveStrokesAtClear": true,
    "isAutoClearWhenExitingWritingMode": false,
    "minimumAutomationStrokeNumber": 0,
    "keepFoldAfterSoftwareExit": false,
    "isAutoEnterAnnotationAfterKillHite": false,
    "isEnableAutoSaveStrokes": true,
    "autoSaveStrokesIntervalMinutes": 5,
    "floatingWindowInterceptor": {
      "isEnabled": true,
      "scanIntervalMs": 1000,
      "autoStart": false,
      "showNotifications": true,
      "interceptRules": {
        "SeewoWhiteboard3Floating": true,
        "SeewoWhiteboard5Floating": true,
        "SeewoWhiteboard5CFloating": true,
        "SeewoPincoSideBarFloating": true,
        "SeewoPincoDrawingFloating": true,
        "SeewoPincoBoardService": true,
        "SeewoPPTFloating": true,
        "AiClassFloating": true,
        "HiteAnnotationFloating": true,
        "ChangYanFloating": true,
        "ChangYanBrushSettings": true,
        "ChangYanSwipeClear": true,
        "ChangYanInteraction": true,
        "ChangYanSubjectApp": true,
        "ChangYanControl": true,
        "ChangYanCommonTools": true,
        "ChangYanSceneToolbar": true,
        "ChangYanDrawWindow": true,
        "ChangYanPptFloating": true,
        "ChangYanPptPageControl": true,
        "ChangYanPptGoBack": true,
        "ChangYanPptPreview": true,
        "IntelligentClassFloating": true,
        "IntelligentClassPptFloating": true,
        "SeewoDesktopAnnotationFloating": true,
        "SeewoDesktopSideBarFloating": true
      }
    }
  },
  "behavior": {
    "showPPTButton": true,
    "pptButtonsDisplayOption": 2211,
    "pptLSButtonPosition": 0,
    "pptRSButtonPosition": 0,
    "pptLBButtonPosition": 0,
    "pptRBButtonPosition": 0,
    "pptSButtonsOption": 221,
    "pptBButtonsOption": 221,
    "enablePPTButtonPageClickable": true,
    "enablePPTButtonLongPressPageTurn": true,
    "powerPointSupport": true,
    "isShowCanvasAtNewSlideShow": false,
    "isNoClearStrokeOnSelectWhenInPowerPoint": true,
    "isShowStrokeOnSelectInPowerPoint": false,
    "isAutoSaveStrokesInPowerPoint": true,
    "isAutoSaveScreenShotInPowerPoint": true,
    "isNotifyPreviousPage": true,
    "isNotifyHiddenPage": true,
    "isNotifyAutoPlayPresentation": false,
    "isEnableTwoFingerGestureInPresentationMode": false,
    "isEnableFingerGestureSlideShowControl": true,
    "isSupportWPS": false,
    "enableWppProcessKill": true,
    "isAlwaysGoToFirstPageOnReenter": false,
    "enablePowerPointEnhancement": true,
    "showGestureButtonInSlideShow": false
  },
  "canvas": {
    "inkWidth": 5.1000000000000005,
    "highlighterWidth": 20.0,
    "inkAlpha": 255.0,
    "isShowCursor": false,
    "inkStyle": 2,
    "eraserSize": 1,
    "eraserType": 0,
    "eraserShapeType": 1,
    "hideStrokeWhenSelecting": false,
    "fitToCurve": false,
    "useAdvancedBezierSmoothing": true,
    "useAsyncInkSmoothing": true,
    "useHardwareAcceleration": true,
    "inkSmoothingQuality": 2,
    "maxConcurrentSmoothingTasks": 0,
    "clearCanvasAndClearTimeMachine": false,
    "enablePressureTouchMode": true,
    "disablePressure": false,
    "autoStraightenLine": true,
    "autoStraightenLineThreshold": 60,
    "highPrecisionLineStraighten": true,
    "lineEndpointSnapping": true,
    "lineEndpointSnappingThreshold": 10,
    "usingWhiteboard": false,
    "customBackgroundColor": "#162924",
    "hyperbolaAsymptoteOption": 0,
    "isCompressPicturesUploaded": false,
    "enablePalmEraser": false,
    "palmEraserSensitivity": 0,
    "clearCanvasAlsoClearImages": true,
    "showCircleCenter": false,
    "enableInkFade": false,
    "inkFadeTime": 3000
  },
  "gesture": {
    "isEnableMultiTouchMode": false,
    "isEnableTwoFingerZoom": false,
    "isEnableTwoFingerTranslate": false,
    "AutoSwitchTwoFingerGesture": true,
    "isEnableTwoFingerRotation": false,
    "isEnableTwoFingerRotationOnSelection": false
  },
  "inkToShape": {
    "isInkToShapeEnabled": false,
    "isInkToShapeNoFakePressureRectangle": true,
    "isInkToShapeNoFakePressureTriangle": true,
    "isInkToShapeTriangle": true,
    "isInkToShapeRectangle": true,
    "isInkToShapeRounded": true,
    "lineStraightenSensitivity": 1.2000000000000002,
    "lineNormalizationThreshold": 0.5
  },
  "startup": {
    "isAutoUpdate": false,
    "isAutoUpdateWithSilence": false,
    "isAutoUpdateWithSilenceStartTime": "06:00",
    "isAutoUpdateWithSilenceEndTime": "22:00",
    "updateChannel": 0,
    "skippedVersion": "",
    "isEnableNibMode": false,
    "isFoldAtStartup": false,
    "crashAction": 0
  },
  "randSettings": {
    "displayRandWindowNamesInputBtn": false,
    "randWindowOnceCloseLatency": 2.5,
    "randWindowOnceMaxStudents": 20,
    "showRandomAndSingleDraw": true,
    "directCallCiRand": false,
    "externalCallerType": 0,
    "selectedBackgroundIndex": 0,
    "customPickNameBackgrounds": [],
    "useLegacyTimerUI": false,
    "useNewStyleUI": true,
    "timerVolume": 1.0,
    "customTimerSoundPath": "",
    "enableOvertimeCountUp": false,
    "enableOvertimeRedText": false,
    "enableProgressiveReminder": false,
    "progressiveReminderVolume": 1.0,
    "progressiveReminderSoundPath": "",
    "useNewRollCallUI": true,
    "enableMLAvoidance": true,
    "mlAvoidanceHistoryCount": 20,
    "mlAvoidanceWeight": 0.8,
    "enableQuickDraw": false
  },
  "modeSettings": {
    "isPPTOnlyMode": false
  },
  "camera": {
    "rotationAngle": 0,
    "resolutionWidth": 1920,
    "resolutionHeight": 1080,
    "selectedCameraIndex": 0
  },
  "dlass": {
    "userToken": "",
    "savedTokens": [],
    "selectedClassName": "",
    "apiBaseUrl": "https://dlass.tech",
    "isAutoUploadNotes": false,
    "autoUploadDelayMinutes": 0
  }
}

[CJKmkp]

emmm

[CJKmkp]

由于难以复现（

[CJKmkp]

我不知道怎么做（

[CreeperAWA]

你 1.7.17.0 ~ 1.7.18.1 改了啥

[CJKmkp]

并没改什么

[CreeperAWA]

那这个 BUG 总不能凭空出现吧，很莫名其妙了

[CreeperAWA]

端点吸附有没有问题，我怀疑是那个的原因，排查一下？我后续也会尝试关闭端点吸附后再测试

[Misaka2298]

同问题，用的是actions的这个build，出现频率大概为5次/节课，而且就算是笔画较短的输入也有吞笔画的问题出现，但是好像吞的不完全，会在起点留一个小的圆墨迹点。

[CJKmkp]

我认为是直线拉直的锅

[CJKmkp]

试试新版