Kirill Burtsev

Hey, folks! Why do we think it's something about database reference? Is it what symptoms suggest? From the stacktrace i'd assume that [repl](https://github.com/realm/realm-core/blob/master/src/realm/transaction.hpp#L387) was invalid, since [InRealmHistoryImpl::_get_history_write](https://github.com/realm/realm-core/blob/master/src/realm/history.cpp#L254) is pretty basic...

Hi! Thanks for reporting this. I'm not sure but this may be .net specific issue. @nirinchev is it valid use of write with async? [The assertion](https://github.com/realm/realm-core/blob/v13.23.4/src/realm/object-store/impl/realm_coordinator.cpp#L1160) essentially tells us that...

@fealebenpae could you take a look at windows impl for buffer lock? the implementation in mongo i believe wasn't very useful for us, since we allocate stuff very differently

sync tests need a minor fix to make ci happy, other then that object-store tests should pass and the pr is almost done

> sync tests need a minor fix to make ci happy, other then that object-store tests should pass and the pr is almost done fixed, ci should be green now....

> Maybe we should print the progress estimate with a fixed number of decimals: `Realm.Sync.Client.Session - Connection[1]: Session[1]: Progress handler called, downloaded = 75, downloadable = 75, estimate = 1,...

relevant logs pieces: Assertion failure: test/object-store/sync/flx_sync.cpp:2343 ``` [2023/10/19 17:18:17.330] 4: ------------------------------------------------------------------------------- [2023/10/19 17:18:17.330] 4: flx: writes work without waiting for sync [2023/10/19 17:18:17.330] 4: ------------------------------------------------------------------------------- [2023/10/19 17:18:17.330] 4: /System/Volumes/Data/data/mci/de49660f85785c1ac63cd38065e73e53/realm-core/test/object-store/sync/flx_sync.cpp:2271 [2023/10/19...

potential fix is here #7042 according to @michael-wb

The fix was merged, and a few consistent failures are still present on multiple platforms: * [on ubuntu2004-no-session-multiplexing](https://spruce.mongodb.com/version/654ac87832f417c866fce2db/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC&variant=ubuntu2004-no-session-multiplexing) Test client migration and rollback with recovery - Assertion failure: flx_migration.cpp:322 ```...

So, looks like baas update #7164 solved the issue with 'Test client migration and rollback with recovery' test failure, but some others are still happening, although also with some new...