We are seeing this crash across several different iPad models, all of them running iPadOS 26.1. The crash did not occur before, and it started appearing consistently over the past month. This suggests that the issue may be related to changes introduced in recent iPadOS 26.1 builds. Crash Log: 0 CoreFoundation 0xc5994 (缺少 UUID b4a0233bf37d3ef6a977e4f36199c5a4) 1 libobjc.A.dylib 0x31814 objc_exception_throw 2 Foundation 0x9465a4 (缺少 UUID 218da4dc727a3341b59e8fdb39a2d7c4) 3 Foundation 0x9469c8 (缺少 UUID 218da4dc727a3341b59e8fdb39a2d7c4) 4 Foundation 0x9468e0 (缺少 UUID 218da4dc727a3341b59e8fdb39a2d7c4) 5 PencilKit 0x100894 -[PKTextEffectsWindowObserver dealloc] 6 UIKitCore 0x22b28 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 7 UIKitCore 0x19918b8 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 8 PencilKit 0xe8448 -[PKTextInputInteraction willMoveToView:] 9 UIKitCore 0x22b1c (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 10 UIKitCore 0x19918b8 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 11 UIKitCore 0x171e094 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 12 UIKitCore 0xc896a8 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 13 UIKitCore 0xc89d70 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 14 UIKitCore 0xc89c10 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 15 CoreFoundation 0x14f78 (缺少 UUID b4a0233bf37d3ef6a977e4f36199c5a4) 16 CoreFoundation 0x17fc2c (缺少 UUID b4a0233bf37d3ef6a977e4f36199c5a4) 17 UIKitCore 0xc89a44 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 18 UIKitCore 0xc8a53c (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 19 UIKitCore 0xc8a638 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 20 UIKitCore 0xb9701c (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 21 UIKitCore 0xb96cd0 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 22 UIKitCore 0xba0720 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 23 UIKitCore 0xb9a608 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 24 UIKitCore 0xca4fec (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 25 UIKitCore 0x90878 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 26 UIKitCore 0x907b0 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 27 libdispatch.dylib 0x1adc _dispatch_call_block_and_release 28 libdispatch.dylib 0x1b7ec _dispatch_client_callout 29 libdispatch.dylib 0x38b24 _dispatch_main_queue_drain.cold.5 30 libdispatch.dylib 0x10ec8 _dispatch_main_queue_drain 31 libdispatch.dylib 0x10e04 _dispatch_main_queue_callback_4CF 32 CoreFoundation 0x6a2c8 (缺少 UUID b4a0233bf37d3ef6a977e4f36199c5a4) 33 CoreFoundation 0x1db3c (缺少 UUID b4a0233bf37d3ef6a977e4f36199c5a4) 34 CoreFoundation 0x1ca6c (缺少 UUID b4a0233bf37d3ef6a977e4f36199c5a4) 35 GraphicsServices 0x1498 GSEventRunModal 36 UIKitCore 0x9dba4 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 37 UIKitCore 0x46a78 (缺少 UUID a0e1cefbfd0136f9b82351b092e4dbc6) 38 ---------- 0xcd20 main + 35 (main.m:35) 39 ??? 0x18a026e28 (缺少) crash_stacktrace.txt