为什么突然我的崩溃日志只在 iOS 14 beta 崩溃时出现？如何获得正确的去符号化崩溃日志？我正在使用 firebase crashlytics 作为崩溃记录工具，它适用于 ios 13.x 或更低版本上发生的崩溃。
Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x1872ca8e0 <redacted> + 60
1 libobjc.A.dylib 0x1872b5424 <redacted> + 68
2 UIKitCore 0x18b75197c <redacted> + 372
3 UIKitCore 0x18b74fe7c <redacted> + 636
4 UIKitCore 0x18b74fbd8 <redacted> + 216
5 UIKitCore 0x18b7511f8 <redacted> + 100
6 UIKitCore 0x18b751268 <redacted> + 80
7 UIKitCore 0x18b74ea3c <redacted> + 40
8 UIKitCore 0x18b74e5a8 <redacted> + 3708
9 UIKitCore 0x18b74d70c <redacted> + 164
10 UIKitCore 0x18bd125e0 <redacted> + 132
11 UIKitCore 0x18bd0d6bc <redacted> + 780
12 UIKitCore 0x18c1e4fcc <redacted> + 164
13 WebKit 0x18fc68c7c <redacted> + 152
14 WebKit 0x18fed97e4 <redacted> + 148
15 UIKitCore 0x18c1e5024 <redacted> + 68
16 UIKitCore 0x18c1e50d4 <redacted> + 144
17 UIKitCore 0x18c1e5774 <redacted> + 236
18 CoreAutoLayout 0x1c95a0558 <redacted> + 88
19 UIKitCore 0x18c1e5618 <redacted> + 836
20 UIKitCore 0x18c1f4130 <redacted> + 2084
21 UIKitCore 0x18b42a7f8 <redacted> + 572
22 UIKitCore 0x18b42d834 <redacted> + 1404
23 UIKitCore 0x18b432250 <redacted> + 5748
24 UIKitCore 0x18b436af4 <redacted> + 324
25 UIKitCore 0x18c1fa7d8 <redacted> + 2204
26 QuartzCore 0x18f1c8a48 <redacted> + 296
27 QuartzCore 0x18f1c8f04 <redacted> + 524
28 QuartzCore 0x18f1dd2bc <redacted> + 144
29 QuartzCore 0x18f1262e8 <redacted> + 416
30 QuartzCore 0x18f1515ac <redacted> + 732
31 QuartzCore 0x18f152900 <redacted> + 96
32 CoreFoundation 0x18751e30c <redacted> + 36
33 CoreFoundation 0x187518aa4 <redacted> + 520
34 CoreFoundation 0x187518fbc <redacted> + 1060
35 CoreFoundation 0x187518788 CFRunLoopRunSpecific + 564
36 GraphicsServices 0x1933f3820 GSEventRunModal + 164
37 UIKitCore 0x18bcd71d8 <redacted> + 1072
38 UIKitCore 0x18bcdd0b8 UIApplicationMain + 1876
39 MagicBox Learning 0x102724c6c main + 14 (__hidden#14868_:14)
40 libdyld.dylib 0x1873a43d4 <redacted> + 4