Problematic tests list (11 rows):

bugs.core_0733_test | Compress Data over the Network
bugs.core_1263_test | GSec incorrectly processes some switches
bugs.core_5501_test | Unclear gstat's diagnostic when damaged page in DB file appears encrypted
bugs.gh_7304_test | Events in system attachments (like garbage collector) are not traced
bugs.gh_8386_test | Crash when creating index on table that uses UDR and ParallelWorkers > 1
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:

5.0.3.1648 2025.04.18 2f4c51ec | SS
5.0.4.1748 2026.01.15 c08ef3b6 | SS
5.0.4.1770 2026.02.24 37f081ce | SS