Crash on collapse header with no lessons

[shymmq]

java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{d46a854 position=37 id=-1, oldPos=37, pLpos:-1 scrap [attachedScrap] update tmpDetached no parent} android.support.v7.widget.RecyclerView{810a96f VFED..... ......ID 0,0-1080,1680 #7f09006b app:id/fragment_timetable_recyclerview}, adapter:eu.davidea.flexibleadapter.FlexibleAdapter@d92267c, layout:eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager@edc5b05, context:com.wabadaba.dziennik.ui.MainActivity@e7a10bd
        at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:5421)
        at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5603)
        at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5563)
        at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5559)
        at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2229)
        at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1556)
        at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1516)
        at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:608)
        at android.support.v7.widget.RecyclerView.dispatchLayoutStep1(RecyclerView.java:3644)
        at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3408)
        at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3962)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.support.design.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1166)
        at android.support.design.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:851)
        at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:870)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1172)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at com.android.internal.policy.DecorView.onLayout(DecorView.java:729)
        at android.view.View.layout(View.java:17641)
        at android.view.ViewGroup.layout(ViewGroup.java:5575)
        at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2346)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2068)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6344)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874)
        at android.view.Choreographer.doCallbacks(Choreographer.java:686)
        at android.view.Choreographer.doFrame(Choreographer.java:621)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6186)
        at java.lang.reflect.Method.invoke(Method.java:-2)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)

[xdk78]

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