-[NSConcreteTextStorage attribute:atIndex:effectiveRange:]: Range or index out of bounds

[Toga21]

Fatal Exception: NSRangeException
0 CoreFoundation 0x827cc __exceptionPreprocess
1 libobjc.A.dylib 0x172e4 objc_exception_throw
2 UIFoundation 0x17e6c -[NSTextStorage ensureAttributesAreFixedInRange:]
3 NAMISo 0x5f64a4 __79-[MPITextRenderer(MPITextKitExtendedRenderer) selectionRectsForCharacterRange:]_block_invoke_2 + 344 (MPITextRenderer.m:344)
4 UIFoundation 0xb18dc -[NSLayoutManager enumerateEnclosingRectsForGlyphRange:withinSelectedGlyphRange:inTextContainer:usingBlock:]
5 NAMISo 0x5f63c8 __79-[MPITextRenderer(MPITextKitExtendedRenderer) selectionRectsForCharacterRange:]_block_invoke + 351 (MPITextRenderer.m:351)
6 NAMISo 0x5f0868 -[MPITextKitContext performBlockWithLockedTextKitComponents:] + 84 (MPITextKitContext.m:84)
7 NAMISo 0x5f6248 -[MPITextRenderer(MPITextKitExtendedRenderer) selectionRectsForCharacterRange:] + 339 (MPITextRenderer.m:339)
8 NAMISo 0x5e61bc -[MPILabel updateSelectionView] + 593 (MPILabel.m:593)
9 NAMISo 0x5e79dc __31-[MPILabel newAsyncDisplayTask]_block_invoke.51 + 929 (MPILabel.m:929)
10 NAMISo 0x5e9224 -[MPITextAsyncLayer _display] + 182 (MPITextAsyncLayer.m:182)
11 NAMISo 0x5e8df4 -[MPITextAsyncLayer display] + 77 (MPITextAsyncLayer.m:77)
12 QuartzCore 0x788c0 CA::Layer::layout_and_display_if_needed(CA::Transaction*)
13 QuartzCore 0xcf914 CA::Context::commit_transaction(CA::Transaction*, double, double*)
14 QuartzCore 0x4e7c4 CA::Transaction::commit()
15 QuartzCore 0x91a0c CA::Transaction::flush_as_runloop_observer(bool)
16 UIKitCore 0xa3568 _UIApplicationFlushCATransaction
17 UIKitCore 0xa0b64 __setupUpdateSequence_block_invoke_2
18 UIKitCore 0xa09d8 _UIUpdateSequenceRun
19 UIKitCore 0xa0628 schedulerStepScheduledMainSection
20 UIKitCore 0xa159c runloopSourceCallback
21 CoreFoundation 0x56328 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION
22 CoreFoundation 0x562bc __CFRunLoopDoSource0
23 CoreFoundation 0x53dc0 __CFRunLoopDoSources0
24 CoreFoundation 0x52fbc __CFRunLoopRun
25 CoreFoundation 0x52830 CFRunLoopRunSpecific
26 GraphicsServices 0x11c4 GSEventRunModal
27 UIKitCore 0x3d2eb0 -[UIApplication _run]
28 UIKitCore 0x4815b4 UIApplicationMain