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Hello I am using realm in my project with react-native and one client has a problem with his realm database, this was corrupted and I don't know how happened. I took the database file from the tablet's client and I tried to open it with Realm Studio (with versions 3.8.0, 3.9.0-beta.0 and 3.10) but only get the same error Invalid top array. Also I tried to open this db in a android emulator with react native 0.61.5 with realm 3.6.4 and fails, and also I updated realm in mi app to 3.6.5 and get same error (Invalid top array). Also a tried to compare files in hexadecimal with a sane realm db but I couldn't fix anything.

Are there any tools other than Realm Studio which could serve me to diagnose, or better, save some of the data?

Goals

<!--- What are you trying to achieve? -->
I try to open a client realm db generated in a tablet (using react-native with android 9)

Expected Results

<!--- What did you expect to happen? -->
Open correctly db in the tablet or in realm studio.

Actual Results

<!--- What happened instead? -->
The smartphone fails and throw the error:

[Error: Unable to open a realm at path '/path/to/default.realm': Invalid top array (ref: 11312616, size: 6436966)
Exception backtrace:
<backtrace not supported on this platform> Path:Exception backtrace:
<backtrace not supported on this platform>.]

Realm studio (v3.10.0) also fails with:

Unable to open a realm at path '/path/to/default.realm': Invalid top array (ref: 11312616, size: 6436966)
Exception backtrace:
0 .io.realm.realm-studio.wHfWNA 0x000000010fc2a271 _ZN5realm15InvalidDatabaseC2ERKNSt3__112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEES9_ + 49
1 .io.realm.realm-studio.wHfWNA 0x000000010fc18660 _ZN5realm5Group18validate_top_arrayERKNS_5ArrayERKNS_9SlabAllocE + 1632
2 .io.realm.realm-studio.wHfWNA 0x000000010fc22710 _ZN5realm11SharedGroup7do_openERKNSt3__112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEbbNS_18SharedGroupOptionsE + 5136
3 .io.realm.realm-studio.wHfWNA 0x000000010f925a1c _ZN5realm11SharedGroup4openERNS_11ReplicationENS_18SharedGroupOptionsE + 236
4 .io.realm.realm-studio.wHfWNA 0x000000010f925403 _ZN5realm11SharedGroupC2ERNS_11ReplicationENS_18SharedGroupOptionsE + 1587
.......

<!--- e.g. the stack trace of a crash -->

Steps to Reproduce

<!--- What are steps we can follow to reproduce this issue? -->
I don't know. This is a DB from a client's tablet and the only thing she said to me is that "the app failed". So I've extracted the file from the device, and tinkered a little bit with it, but couldn't get anything

Code Sample

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Version of Realm and Tooling

• Realm JS SDK Version: 3.6.4
• Realm Studio: 3.8.0, 3.9.0-beta.0 and 3.10
• Node or React Native: React native 0.61.5