Valet: iOS 15 crash on `specialized static SecItem.copy(matching:)`

Getting intermittent crash reports from devices running on iOS 15. Not sure if this is associated with Security framework or Valet.

Valet version- 4.1.2

I’m using a valet with basic initialisation: let keychain = Valet.valet(with: Identifier.init(nonEmpty: "identifier")!, accessibility: .afterFirstUnlock)

The crash reports highlights line 25 specialized static SecItem.copy<A>(matching:) and Xcode organiser points to a line in code where it’s accessing a string from keychain: keychain.string(forKey: "key")

The stack trace from Crashlytics:

Crashed: com.apple.root.user-initiated-qos
0  libsystem_kernel.dylib         0x79c4 __pthread_kill + 8
1  libsystem_pthread.dylib        0x7434 pthread_kill + 268
2  libsystem_c.dylib              0x1ff64 abort + 164
3  libsystem_malloc.dylib         0x1bac8 _malloc_put + 550
4  libsystem_malloc.dylib         0x1bd64 malloc_zone_error + 104
5  libsystem_malloc.dylib         0x162c8 nanov2_allocate_from_block + 568
6  libsystem_malloc.dylib         0x1536c nanov2_allocate + 128
7  libsystem_malloc.dylib         0x15288 nanov2_malloc + 64
8  libsystem_malloc.dylib         0x5594 _malloc_zone_malloc + 156
9  CoreFoundation                 0xed28 __CFBasicHashRehash + 376
10 CoreFoundation                 0x206e4 __CFBasicHashAddValue + 104
11 CoreFoundation                 0x14200 CFBasicHashAddValue + 2108
12 CoreFoundation                 0x5d340 CFDictionaryAddValue + 348
13 Security                       0x538c der_decode_dictionary + 248
14 Security                       0x13d6c der_decode_plist + 1172
15 Security                       0x115c4 SecXPCDictionaryCopyPList + 120
16 Security                       0x16c8c SecXPCDictionaryCopyPListOptional + 72
17 Security                       0x12aa0 securityd_send_sync_and_do + 136
18 Security                       0xb55e0 cftype_to_bool_cftype_error_request + 160
19 Security                       0x464c __SecItemCopyMatching_block_invoke_2 + 224
20 Security                       0x5030 __SecItemAuthDoQuery_block_invoke + 540
21 Security                       0x3790 SecItemAuthDoQuery + 1292
22 Security                       0x4b98 __SecItemCopyMatching_block_invoke + 144
23 Security                       0xaf58 SecOSStatusWith + 56
24 Security                       0x48b8 SecItemCopyMatching + 400
25 **                             0x1c9c770 specialized static SecItem.copy<A>(matching:) + 4362553200
26 **                             0x1c9eb88 specialized static Keychain.object(forKey:options:) + 4362562440
27 **                             0x1cb0988 Valet.string(forKey:) + 4362635656

PS- lines 25, 26 & 27 shows the app name which I’ve replaced with **.