This is from our firebase crashlytics (not sure if that helps):
Crashed: com.apple.main-thread
0  ZendeskSDKConversationKit      0x48cf4 __swift_memcpy40_8 + 6692
1  ZendeskSDKConversationKit      0x4c470 block_destroy_helper + 13216
2  ZendeskSDKConversationKit      0x4c470 block_destroy_helper + 13216
3  ZendeskSDKConversationKit      0x47ad4 __swift_memcpy40_8 + 2052
4  libdispatch.dylib              0x26a8 _dispatch_call_block_and_release + 32
5  libdispatch.dylib              0x4300 _dispatch_client_callout + 20
6  libdispatch.dylib              0x12998 _dispatch_main_queue_drain + 984
7  libdispatch.dylib              0x125b0 _dispatch_main_queue_callback_4CF + 44
8  CoreFoundation                 0x3720c __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
9  CoreFoundation                 0x33f18 __CFRunLoopRun + 1996
10 CoreFoundation                 0x33668 CFRunLoopRunSpecific + 608
11 GraphicsServices               0x35ec GSEventRunModal + 164
12 UIKitCore                      0x22c2b4 -[UIApplication _run] + 888
13 UIKitCore                      0x22b8f0 UIApplicationMain + 340
14 Runner                         0xe448 main + 12 (AppDelegate.swift:12)
15 ???                            0x1c1276dcc (Missing)