Problematic tests list (13 rows):

bugs.core_0733_test | Compress Data over the Network
bugs.core_5501_test | Unclear gstat's diagnostic when damaged page in DB file appears encrypted
bugs.gh_8182_test | IN predicate incorrectly handles single parenthesized subquery as IN-list, instead of table subquery
bugs.gh_8263_test | gbak on Classic with ParallelWorkers > 1 doesn't restore indices, giving a cryptic error message
bugs.gh_8386_test | Crash when creating index on table that uses UDR and ParallelWorkers > 1
bugs.gh_8589_test | PERCENT_RANK may return NaN instead of 0
bugs.gh_8592_test | Presence of 'ROWS <n_limit>' causes garbage in error message when string conversion problem raises
functional.arno.optimizer.test_opt_sort_by_index_10 | ORDER BY ASC using index (multi)
functional.arno.optimizer.test_opt_sort_by_index_13 | ORDER BY ASC using index (multi)
functional.arno.optimizer.test_opt_sort_by_index_19 | ORDER BY ASC using index (multi) and WHERE clause
functional.basic.isql.test_02 | ISQL - SHOW SYSTEM TABLES
functional.replication.test_make_async_reinit_reliable | Make asynchronous replica re-initialization reliable #8324
functional.tabloid.test_333be4bf | Change error by warning in the case when isc_dpb_parallel_workers value is not at valid range

This list is the same for:

5.0.3.1657 2025.06.19 4bd4c1f2 | CS