iphonex ios11

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'layout attributes for supplementary item at index path (<NSIndexPath: 0xc000000000000516> {length = 2, path = 5 - 0}) changed from <CSStickyHeaderFlowLayout: 0x7fa0c758e060> indexPath: {5, 0} zIndex: 1024 valid: YES kind: UICollectionElementKindSectionHeader to <CSStickyHeaderFlowLayout: 0x7fa0c7592550> indexPath: {5, 0} zIndex: 1024 valid: YES kind: UICollectionElementKindSectionHeader without invalidating the layout'
*** First throw call stack:
(
0 CoreFoundation 0x000000010f3701ab __exceptionPreprocess + 171
1 libobjc.A.dylib 0x000000010ea05f41 objc_exception_throw + 48
2 CoreFoundation 0x000000010f375372 +[NSException raise:format:arguments:] + 98
3 Foundation 0x000000010e4aa089 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 193
4 UIKit 0x0000000110ba774a __45-[UICollectionViewData validateLayoutInRect:]_block_invoke + 1558
5 UIKit 0x0000000110ba6baf -[UICollectionViewData validateLayoutInRect:] + 2964
6 UIKit 0x0000000110ba9eff -[UICollectionViewData layoutAttributesForCellsInRect:validateLayout:] + 167
7 UIKit 0x0000000110b32767 -[UICollectionView _computePrefetchCandidatesForVisibleBounds:futureVisibleBounds:prefetchVector:notifyDelegateIfNeeded:] + 127
8 UIKit 0x0000000110b326d8 -[UICollectionView _computePrefetchCandidatesForVelocity:notifyDelegateIfNeeded:] + 225
9 UIKit 0x0000000110b325e3 -[UICollectionView _prefetchItemsForVelocity:maxItemsToPrefetch:invalidateCandidatesOnDirectionChanges:] + 921
10 UIKit 0x0000000110b3ba73 -[UICollectionView layoutSubviews] + 779
11 UIKit 0x00000001101396f5 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1439
12 QuartzCore 0x000000010f8c03ee -[CALayer layoutSublayers] + 153
13 QuartzCore 0x000000010f8c44dd _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 401
14 QuartzCore 0x000000010f84cded _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 365
15 QuartzCore 0x000000010f878704 _ZN2CA11Transaction6commitEv + 500
16 QuartzCore 0x000000010f7c892c _ZN2CA7Display11DisplayLink14dispatch_itemsEyyy + 960
17 QuartzCore 0x000000010f904970 ZL22display_timer_callbackP12__CFMachPortPvlS1 + 248
18 CoreFoundation 0x000000010f2ff9c9 __CFMachPortPerform + 169
19 CoreFoundation 0x000000010f2ff909 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION + 41
20 CoreFoundation 0x000000010f2ff871 __CFRunLoopDoSource1 + 465
21 CoreFoundation 0x000000010f2f7654 __CFRunLoopRun + 2596
22 CoreFoundation 0x000000010f2f69b9 CFRunLoopRunSpecific + 409
23 GraphicsServices 0x00000001158069c6 GSEventRunModal + 62
24 UIKit 0x00000001100685e8 UIApplicationMain + 159
25 CSStickyHeaderFlowLayoutDemo 0x000000010d5410af main + 111
26 libdyld.dylib 0x00000001167f7d81 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException