SDK and version

SDK : iOS
Version: 10.42.4

Observations

When a user is opening a realm it crashes with an assertion error.

Crash log / stacktrace

/Users/myapp/Library/Developer/Xcode/DerivedData/myapp-actcjfywbohdcferndpcmskchjsv/SourcePackages/checkouts/realm-core/src/realm/array.hpp:111: [realm-core-13.21.0] Assertion failed: ref
0 myapp 0x00000001053e4e98 ZN5realm4utilL18terminate_internalERNSt3_118basic_stringstreamIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 28
1 myapp 0x00000001053e4e78 _ZN5realm4util19terminate_with_infoEPKcS2_lS2_OSt16initializer_listINS0_9PrintableEE + 308
2 myapp 0x00000001053e4d44 _ZN5realm4util19terminate_with_infoEPKcS2_lS2_OSt16initializer_listINS0_9PrintableEE + 0
3 myapp 0x0000000104bb0700 _ZN5realm5Array13init_from_refEm + 92
4 myapp 0x0000000104be29ac _ZN5realm15ArraySmallBlobs13init_from_memENS_6MemRefE + 104
5 myapp 0x0000000104bef828 _ZN5realm11ArrayString13init_from_memENS_6MemRefE + 668
6 myapp 0x0000000104bed9b8 _ZN5realm11ArrayString13init_from_refEm + 80
7 myapp 0x0000000104bef9a8 _ZN5realm11ArrayString16init_from_parentEv + 60
8 myapp 0x0000000104c2023c _ZN5realm7Cluster8do_eraseINS_11ArrayStringEEEvmNS_6ColKeyE + 152
9 myapp 0x0000000104c1f11c _ZZN5realm7Cluster5eraseENS_6ObjKeyERNS_12CascadeStateEENK3$_6clENS_6ColKeyE + 2000
10 myapp 0x0000000104c0d358 ZNK5realm5Table25for_each_and_every_columnIZNS_7Cluster5eraseENS_6ObjKeyERNS_12CascadeStateEE3$_6EEbT + 136
11 myapp 0x0000000104c0d114 _ZN5realm7Cluster5eraseENS_6ObjKeyERNS_12CascadeStateE + 420
12 myapp 0x0000000104c3aa78 _ZZN5realm16ClusterNodeInner5eraseENS_6ObjKeyERNS_12CascadeStateEENK3$_8clEPNS_11ClusterNodeERNS0_9ChildInfoE + 76
13 myapp 0x0000000104c3a92c ZN5realm16ClusterNodeInner7recurseImZNS0_5eraseENS_6ObjKeyERNS_12CascadeStateEE3$_8EET_RNS0_9ChildInfoET0 + 200
14 myapp 0x0000000104c30e10 ZN5realm16ClusterNodeInner7recurseImZNS0_5eraseENS_6ObjKeyERNS_12CascadeStateEE3$_8EET_S2_T0 + 212
15 myapp 0x0000000104c30d30 _ZN5realm16ClusterNodeInner5eraseENS_6ObjKeyERNS_12CascadeStateE + 64
16 myapp 0x0000000104c34190 _ZN5realm11ClusterTree5eraseENS_6ObjKeyERNS_12CascadeStateE + 248
17 myapp 0x000000010533bd50 _ZN5realm5Table13remove_objectENS_6ObjKeyE + 348
18 myapp 0x000000010533b974 _ZN5realm5Table12set_embeddedEbb + 620
19 myapp 0x000000010533b5a0 _ZN5realm5Table14set_table_typeENS0_4TypeEb + 488
20 myapp 0x0000000104e80e08 ZZL28apply_post_migration_changesRN5realm5GroupERKNSt3_16vectorINS_12SchemaChangeENS2_9allocatorIS4_EEEERKNS_6SchemaE15DidRereadSchema28HandleBackLinksAutomaticallyEN7ApplierclENS_13schema_change15ChangeTableTypeE + 68
21 myapp 0x0000000104e80b90 ZNK5realm12SchemaChange5visitIRZL28apply_post_migration_changesRNS_5GroupERKNSt316vectorIS0_NS4_9allocatorIS0_EEEERKNS_6SchemaE15DidRereadSchema28HandleBackLinksAutomaticallyE7ApplierEEDaOT

• 160
  22 myapp 0x0000000104e7a4c0 ZL28apply_post_migration_changesRN5realm5GroupERKNSt3_16vectorINS_12SchemaChangeENS2_9allocatorIS4_EEEERKNS_6SchemaE15DidRereadSchema28HandleBackLinksAutomatically + 136
  23 myapp 0x0000000104e79e38 ZN5realm11ObjectStore20apply_schema_changesERNS_11TransactionEyRNS_6SchemaEyNS_10SchemaModeERKNSt3_16vectorINS_12SchemaChangeENS6_9allocatorIS8_EEEEbNS6_8functionIFvvEEE + 764
  24 myapp 0x0000000104f4aa18 ZN5realm5Realm13update_schemaENS_6SchemaEyNSt3_18functionIFvNS2_10shared_ptrIS0_EES5_RS1_EEENS3_IFvS5_EEEb + 1456
  25 myapp 0x0000000104b10a7c +[RLMRealm realmWithConfiguration:confinedTo:error:] + 2428
  26 myapp 0x0000000104b1001c +[RLMRealm realmWithConfiguration:queue:error:] + 156
  27 myapp 0x00000001055c7958 $sSo8RLMRealmC13configuration5queueABSo0A13ConfigurationC_So012OS_dispatch_C0CSgtKcfCTO + 128
  28 myapp 0x000000010567f574 $s10RealmSwift0A0V13configuration5queueA2C13ConfigurationV_So012OS_dispatch_D0CSgtKcfC + 192
  29 myapp 0x00000001043a3ce8 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_yyXEfU_ + 660
  30 myapp 0x00000001043ab964 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_yyXEfU_TA + 68
  31 libswiftObjectiveC.dylib 0x00000001a2b99af0 $s10ObjectiveC15autoreleasepool8invokingxxyKXE_tKlF + 56
  32 myapp 0x00000001043a3324 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_ + 432
  33 myapp 0x00000001043a3a48 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_TA + 188
  34 myapp 0x0000000104083a0c $sIeg_IeyB_TR + 48
  35 libdispatch.dylib 0x000000010b278528 _dispatch_call_block_and_release + 24
  36 libdispatch.dylib 0x000000010b279d50 _dispatch_client_callout + 16
  37 libdispatch.dylib 0x000000010b282014 _dispatch_lane_serial_drain + 924
  38 libdispatch.dylib 0x000000010b282d6c _dispatch_lane_invoke + 424
  39 libdispatch.dylib 0x000000010b290b74 _dispatch_workloop_worker_thread + 1716
  40 libsystem_pthread.dylib 0x00000001b1834878 _pthread_wqthread + 284
  41 libsystem_pthread.dylib 0x00000001b183363c start_wqthread + 8
  !!! IMPORTANT: Please report this at https://github.com/realm/realm-core/issues/new/choose2023-09-29 20:48:56.330207+0200 myapp[7667:123266] /Users/myapp/Library/Developer/Xcode/DerivedData/myapp-actcjfywbohdcferndpcmskchjsv/SourcePackages/checkouts/realm-core/src/realm/array.hpp:111: [realm-core-13.21.0] Assertion failed: ref
  0 myapp 0x00000001053e4e98 ZN5realm4utilL18terminate_internalERNSt3_118basic_stringstreamIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 28
  1 myapp 0x00000001053e4e78 _ZN5realm4util19terminate_with_infoEPKcS2_lS2_OSt16initializer_listINS0_9PrintableEE + 308
  2 myapp 0x00000001053e4d44 _ZN5realm4util19terminate_with_infoEPKcS2_lS2_OSt16initializer_listINS0_9PrintableEE + 0
  3 myapp 0x0000000104bb0700 _ZN5realm5Array13init_from_refEm + 92
  4 myapp 0x0000000104be29ac _ZN5realm15ArraySmallBlobs13init_from_memENS_6MemRefE + 104
  5 myapp 0x0000000104bef828 _ZN5realm11ArrayString13init_from_memENS_6MemRefE + 668
  6 myapp 0x0000000104bed9b8 _ZN5realm11ArrayString13init_from_refEm + 80
  7 myapp 0x0000000104bef9a8 _ZN5realm11ArrayString16init_from_parentEv + 60
  8 myapp 0x0000000104c2023c _ZN5realm7Cluster8do_eraseINS_11ArrayStringEEEvmNS_6ColKeyE + 152
  9 myapp 0x0000000104c1f11c _ZZN5realm7Cluster5eraseENS_6ObjKeyERNS_12CascadeStateEENK3$_6clENS_6ColKeyE + 2000
  10 myapp 0x0000000104c0d358 ZNK5realm5Table25for_each_and_every_columnIZNS_7Cluster5eraseENS_6ObjKeyERNS_12CascadeStateEE3$_6EEbT + 136
  11 myapp 0x0000000104c0d114 _ZN5realm7Cluster5eraseENS_6ObjKeyERNS_12CascadeStateE + 420
  12 myapp 0x0000000104c3aa78 _ZZN5realm16ClusterNodeInner5eraseENS_6ObjKeyERNS_12CascadeStateEENK3$_8clEPNS_11ClusterNodeERNS0_9ChildInfoE + 76
  13 myapp 0x0000000104c3a92c ZN5realm16ClusterNodeInner7recurseImZNS0_5eraseENS_6ObjKeyERNS_12CascadeStateEE3$_8EET_RNS0_9ChildInfoET0 + 200
  14 myapp 0x0000000104c30e10 ZN5realm16ClusterNodeInner7recurseImZNS0_5eraseENS_6ObjKeyERNS_12CascadeStateEE3$_8EET_S2_T0 + 212
  15 myapp 0x0000000104c30d30 _ZN5realm16ClusterNodeInner5eraseENS_6ObjKeyERNS_12CascadeStateE + 64
  16 myapp 0x0000000104c34190 _ZN5realm11ClusterTree5eraseENS_6ObjKeyERNS_12CascadeStateE + 248
  17 myapp 0x000000010533bd50 _ZN5realm5Table13remove_objectENS_6ObjKeyE + 348
  18 myapp 0x000000010533b974 _ZN5realm5Table12set_embeddedEbb + 620
  19 myapp 0x000000010533b5a0 _ZN5realm5Table14set_table_typeENS0_4TypeEb + 488
  20 myapp 0x0000000104e80e08 ZZL28apply_post_migration_changesRN5realm5GroupERKNSt3_16vectorINS_12SchemaChangeENS2_9allocatorIS4_EEEERKNS_6SchemaE15DidRereadSchema28HandleBackLinksAutomaticallyEN7ApplierclENS_13schema_change15ChangeTableTypeE + 68
  21 myapp 0x0000000104e80b90 ZNK5realm12SchemaChange5visitIRZL28apply_post_migration_changesRNS_5GroupERKNSt316vectorIS0_NS4_9allocatorIS0_EEEERKNS_6SchemaE15DidRereadSchema28HandleBackLinksAutomaticallyE7ApplierEEDaOT + 160
  22 myapp 0x0000000104e7a4c0 ZL28apply_post_migration_changesRN5realm5GroupERKNSt3_16vectorINS_12SchemaChangeENS2_9allocatorIS4_EEEERKNS_6SchemaE15DidRereadSchema28HandleBackLinksAutomatically + 136
  23 myapp 0x0000000104e79e38 ZN5realm11ObjectStore20apply_schema_changesERNS_11TransactionEyRNS_6SchemaEyNS_10SchemaModeERKNSt3_16vectorINS_12SchemaChangeENS6_9allocatorIS8_EEEEbNS6_8functionIFvvEEE + 764
  24 myapp 0x0000000104f4aa18 ZN5realm5Realm13update_schemaENS_6SchemaEyNSt3_18functionIFvNS2_10shared_ptrIS0_EES5_RS1_EEENS3_IFvS5_EEEb + 1456
  25 myapp 0x0000000104b10a7c +[RLMRealm realmWithConfiguration:confinedTo:error:] + 2428
  26 myapp 0x0000000104b1001c +[RLMRealm realmWithConfiguration:queue:error:] + 156
  27 myapp 0x00000001055c7958 $sSo8RLMRealmC13configuration5queueABSo0A13ConfigurationC_So012OS_dispatch_C0CSgtKcfCTO + 128
  28 myapp 0x000000010567f574 $s10RealmSwift0A0V13configuration5queueA2C13ConfigurationV_So012OS_dispatch_D0CSgtKcfC + 192
  29 myapp 0x00000001043a3ce8 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_yyXEfU_ + 660
  30 myapp 0x00000001043ab964 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_yyXEfU_TA + 68
  31 libswiftObjectiveC.dylib 0x00000001a2b99af0 $s10ObjectiveC15autoreleasepool8invokingxxyKXE_tKlF + 56
  32 myapp 0x00000001043a3324 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_ + 432
  33 myapp 0x00000001043a3a48 $s8myapp11RealmFacadeC11mergeRealms18localConfiguration06remoteG06userId16progressCallback10completiony0B5Swift0B0V0G0V_ANSSSgySi_SitcyAA0B10MergeErrorOSgctFyycfU_TA + 188
  34 myapp 0x0000000104083a0c $sIeg_IeyB_TR + 48
  35 libdispatch.dylib 0x000000010b278528 _dispatch_call_block_and_release + 24
  36 libdispatch.dylib 0x000000010b279d50 _dispatch_client_callout + 16
  37 libdispatch.dylib 0x000000010b282014 _dispatch_lane_serial_drain + 924
  38 libdispatch.dylib 0x000000010b282d6c _dispatch_lane_invoke + 424
  39 libdispatch.dylib 0x000000010b290b74 _dispatch_workloop_worker_thread + 1716
  40 libsystem_pthread.dylib 0x00000001b1834878 _pthread_wqthread + 284
  41 libsystem_pthread.dylib 0x00000001b183363c start_wqthread + 8

Steps & Code to Reproduce

I have a sample realm file I can send, if I know where to send it. I am not able to post it publically here.

The realm file is possible to open using realm studio, but not using the realm swift SDK.