Memory issue (__swift_memcpy91_8)

[JohanAlbrectsen]

We're using the package: https://github.com/smartlook/analytics-swift-package.git,
Our users are experiencing a crash, here are the crash log that we've managed to fetch:

          Crashed: com.apple.main-thread
0  libswiftCore.dylib             0x3d7824 _swift_release_dealloc + 32
1  libswiftCore.dylib             0x3d8950 bool swift::RefCounts<swift::RefCountBitsT<(swift::RefCountInlinedness)1>>::doDecrementSlow<(swift::PerformDeinit)1>(swift::RefCountBitsT<(swift::RefCountInlinedness)1>, unsigned int) + 160
2  SmartlookAnalytics             0x10d9fc __swift_memcpy91_8 + 26132
3  SmartlookAnalytics             0x11e928 __swift_memcpy352_8 + 23560
4  SmartlookAnalytics             0x11e5c8 __swift_memcpy352_8 + 22696
5  SmartlookAnalytics             0x173418 block_destroy_helper.13 + 7216
6  SmartlookAnalytics             0xd1458 block_destroy_helper.11 + 37316
7  SmartlookAnalytics             0xd17bc block_destroy_helper + 248
8  SmartlookAnalytics             0xd16a0 block_destroy_helper.11 + 37900
9  SmartlookAnalytics             0xd136c block_destroy_helper.11 + 37080
10 UIKitCore                      0x19fb70 -[UIApplication sendEvent:] + 376
11 UIKit                          0x7888 -[UIApplicationAccessibility sendEvent:] + 112
12 UIKitCore                      0x1a009c __dispatchPreprocessedEventFromEventQueue + 1048
13 UIKitCore                      0x1a9f3c __processEventQueue + 5696
14 UIKitCore                      0xa2c60 updateCycleEntry + 160
15 UIKitCore                      0xa09d8 _UIUpdateSequenceRun + 84
16 UIKitCore                      0xa0628 schedulerStepScheduledMainSection + 172
17 UIKitCore                      0xa159c runloopSourceCallback + 92
18 CoreFoundation                 0x56328 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
19 CoreFoundation                 0x562bc __CFRunLoopDoSource0 + 176
20 CoreFoundation                 0x53dc0 __CFRunLoopDoSources0 + 244
21 CoreFoundation                 0x52fbc __CFRunLoopRun + 840
22 CoreFoundation                 0x52830 CFRunLoopRunSpecific + 588
23 GraphicsServices               0x11c4 GSEventRunModal + 164
24 UIKitCore                      0x3d2eb0 -[UIApplication _run] + 816
25 UIKitCore                      0x4815b4 UIApplicationMain + 340
26 Gains                          0x1a94bc main + 13 (AppDelegate.swift:13)
27 ???                            0x1bd132ec8 (Missing)