I have a similar problem.
0 CoreFoundation 0xed5e0 __exceptionPreprocess
1 libobjc.A.dylib 0x2bc00 objc_exception_throw
2 Foundation 0x6bc398 _userInfoForFileAndLine
3 UIFoundation 0x19464 -[NSTextRange initWithLocation:endLocation:]
4 UIFoundation 0x29c78 __NSTextLayoutManagerRemoveTextLayoutFragmentsInTextRange
5 UIFoundation 0x75ad4 -[NSTextLayoutManager _invalidateLayoutForTextRange:hard:]
6 UIFoundation 0x764c0 -[NSTextLayoutManager processLayoutInvalidationForTextRange:synchronizing:]
7 CoreFoundation 0x35d94 NSARRAY_IS_CALLING_OUT_TO_A_BLOCK
8 CoreFoundation 0x35ac0 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:]
9 UIFoundation 0xa863c __54-[NSTextContentManager synchronizeTextLayoutManagers:]_block_invoke
10 CoreFoundation 0x35d94 NSARRAY_IS_CALLING_OUT_TO_A_BLOCK
11 CoreFoundation 0x35ac0 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:]
12 UIFoundation 0x19720 -[NSTextContentManager synchronizeTextLayoutManagers:]
13 UIFoundation 0x187a4 -[NSTextContentStorage synchronizeTextLayoutManagers:]
14 UIFoundation 0x11dcc -[NSTextStorage endEditing]
15 UIFoundation 0x11c20 -[NSTextStorage coordinateEditing:]
16 UIKitCore 0x10cf858 -[UITextInputController _insertText:fromKeyboard:]
17 UIKitCore 0x10d14f4 -[UITextInputController deleteBackward]
18 UIKitCore 0x10f2ea8 -[UITextView deleteBackward]
19 UIKitCore 0x933dc8 -[UIKBInputDelegateManager _deleteBackwardAndNotify:reinsertText:overrideOriginalContextBeforeInputWith:]
20 UIKitCore 0xc1c64c -[UIKeyboardImpl deleteBackwardAndNotifyAtEnd:deletionCount:reinsertTextInLoop:]
21 UIKitCore 0xc12364 -[UIKeyboardImpl performKeyboardOutput:checkingDelegate:forwardToRemoteInputSource:]
22 UIKitCore 0xc11aa8 -[UIKeyboardImpl performKeyboardOutput:forwardToRemoteInputSource:]
23 UIKitCore 0xc11a60 -[UIKeyboardImpl performKeyboardOutput:]
24 UIKitCore 0xc39bcc -[UIKeyboardImpl _performKeyboardOutput:respectingForwardingDelegate:]
25 UIKitCore 0xc100c8 __55-[UIKeyboardImpl handleKeyboardInput:executionContext:]_block_invoke.1176
26 UIKitCore 0xbf50d8 -[UIKeyboardImpl performOperations:withTextInputSource:]
27 UIKitCore 0xc0fe6c __55-[UIKeyboardImpl handleKeyboardInput:executionContext:]_block_invoke_2
28 UIKitCore 0x312464 -[UIKeyboardTaskEntry execute:]
29 UIKitCore 0x312348 -[UIKeyboardTaskQueue continueExecutionOnMainThread]
30 Foundation 0xf6064 __NSThreadPerformPerform
31 CoreFoundation 0x37acc CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION
32 CoreFoundation 0x36d48 __CFRunLoopDoSource0
33 CoreFoundation 0x354fc __CFRunLoopDoSources0
34 CoreFoundation 0x34238 __CFRunLoopRun
35 CoreFoundation 0x33e18 CFRunLoopRunSpecific
36 GraphicsServices 0x35ec GSEventRunModal
37 UIKitCore 0x22f2fc -[UIApplication _run]
38 UIKitCore 0x22e938 UIApplicationMain
Quentin123
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Excuse me, have you found a solution?