Application Specific Information:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'layout attributes for supplementary item at index path (<NSIndexPath: 0xc000000000000016> {length = 2, path = 0 - 0}) changed from <JSQMessagesCollectionViewLayoutAttributes: 0x13398d420> index path: (<NSIndexPath: 0xc000000000000016> {length = 2, path = 0 - 0}); element kind: (UICollectionElementKindSectionHeader); frame = (0 0; 414 32); zIndex = 10;  to <JSQMessagesCollectionViewLayoutAttributes: 0x131ef8640> index path: (<NSIndexPath: 0xc000000000000016> {length = 2, path = 0 - 0}); element kind: (UICollectionElementKindSectionHeader); frame = (0 0; 414 32); zIndex = -1;  without invalidating the layout'

Thread 0 Crashed:
0   CoreFoundation                  0x000000018878afe0 __exceptionPreprocess + 124
1   libobjc.A.dylib                 0x00000001871ec538 objc_exception_throw + 52
2   CoreFoundation                  0x000000018878aeb4 +[NSException raise:format:arguments:] + 100
3   Foundation                      0x0000000189223760 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 108
4   UIKit                           0x000000018e9195c8 __45-[UICollectionViewData validateLayoutInRect:]_block_invoke + 1324
5   UIKit                           0x000000018e918ad4 -[UICollectionViewData validateLayoutInRect:] + 1492
6   UIKit                           0x000000018f1fb184 -[UICollectionViewData layoutAttributesForCellsInRect:validateLayout:] + 144
7   UIKit                           0x000000018f1b79f4 -[UICollectionView _computePrefetchCandidatesForVisibleBounds:futureVisibleBounds:prefetchVector:notifyDelegateIfNeeded:] + 128
8   UIKit                           0x000000018f1b7954 -[UICollectionView _computePrefetchCandidatesForVelocity:notifyDelegateIfNeeded:] + 164
9   UIKit                           0x000000018f1b7884 -[UICollectionView _prefetchItemsForVelocity:maxItemsToPrefetch:invalidateCandidatesOnDirectionChanges:] + 764
10  UIKit                           0x000000018e9181ac -[UICollectionView layoutSubviews] + 700
11  UIKit                           0x000000018e8b9cc0 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1196
12  QuartzCore                      0x000000018baaa274 -[CALayer layoutSublayers] + 144
13  QuartzCore                      0x000000018ba9ede8 CA::Layer::layout_if_needed(CA::Transaction*) + 288
14  QuartzCore                      0x000000018ba9eca8 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 28
15  QuartzCore                      0x000000018ba1a34c CA::Context::commit_transaction(CA::Transaction*) + 248
16  QuartzCore                      0x000000018ba413ac CA::Transaction::commit() + 500
17  QuartzCore                      0x000000018b99d530 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 596
18  IOKit                           0x00000001889f7b9c IODispatchCalloutFromCFMessage + 368
19  CoreFoundation                  0x0000000188721960 __CFMachPortPerform + 176
20  CoreFoundation                  0x0000000188739ae4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
21  CoreFoundation                  0x0000000188739284 __CFRunLoopDoSource1 + 432
22  CoreFoundation                  0x0000000188736d98 __CFRunLoopRun + 1748
23  CoreFoundation                  0x0000000188666da4 CFRunLoopRunSpecific + 420
24  GraphicsServices                0x000000018a0d1074 GSEventRunModal + 96
25  UIKit                           0x000000018e921c9c UIApplicationMain + 204
26  ChatSecure                      0x00000001000b5d78 main (main.m:14)
27  libdyld.dylib                   0x000000018767559c start + 0