Expected transaction to raise cause UnambiguousTimeoutException, but instead it raised exception: EXCEPTION_UNKNOWN

Wrong Exception is thrown for some permutation of test: `permute_allFailedTransactions_checkQueryStmtBehaviour`  in .Net Performer

Below are some failures from jenkins:

https://sdk.jenkins.couchbase.com/job/dotnet/job/sdk/job/TransactionsFITPerformer_SinglePerformer/1304/testReport/com.couchbase.transactions.query.single_query/SingleQueryTransactionBlockedByAFailedTxnTest/Setup_test_Infra_and_Execute_Tests___7_0_release_Vs_DOTNET_MASTER___permute_allFailedTransactions_checkQueryStmtBehaviour_8/

https://sdk.jenkins.couchbase.com/job/dotnet/job/sdk/job/TransactionsFITPerformer_SinglePerformer/1304/testReport/junit/com.couchbase.transactions.query.single_query/SingleQueryTransactionBlockedByAFailedTxnTest/Setup_test_Infra_and_Execute_Tests___7_1_stable_Vs_DOTNET_MASTER___permute_allFailedTransactions_checkQueryStmtBehaviour_11/

https://sdk.jenkins.couchbase.com/job/dotnet/job/sdk/job/TransactionsFITPerformer_SinglePerformer/1304/testReport/junit/com.couchbase.transactions.query.single_query/SingleQueryTransactionBlockedByAFailedTxnTest/Setup_test_Infra_and_Execute_Tests___7_2_stable_Vs_DOTNET_MASTER___permute_allFailedTransactions_checkQueryStmtBehaviour_7/

Error message thrown:

Expected transaction to raise cause UnambiguousTimeoutException, but instead it raised exception: EXCEPTION_UNKNOWN exception_cause: CouchbaseException

This can be similar to https://issues.couchbase.com/browse/NCBC-3450

Attaching Driver and FIT Performer logs of one of the test case for your reference. Please feel free to reach out for any further assistance.

Thanks!