Problematic tests list (15 rows):
functional.table.external.external_file_all_datatypes_test  External tables must accept values of all existing FB datatypes if they belong to allowed range (or set), and must reject out-of-range values
functional.tabloid.core_3611_aux_test  Wrong data while retrieving from CTEs (or derived tables) with same column names
functional.tabloid.test_3123a5a0  Check ability to reuse internal connection by EXECUTE STATEMENT.
functional.tabloid.test_657d86fe  RemoteAuxPort is per-database
functional.tabloid.test_7641d759  Fix modulo crash on MIN % -1
functional.tabloid.test_80fd0682  Fixed bug with index names patterns in online validation service
functional.tabloid.test_arithmetic_cast_float_to_int_as_round  Result of CAST for numbers is implementation defined
functional.tabloid.test_arithmetic_numexpr_eval_dialect_1  Check result of integer division on dialect 1.
functional.tabloid.test_arithmetic_numexpr_eval_dialect_3  Check result of integer division on dialect 3.
functional.tabloid.test_bus_3103_windowed_funcs  Query for test MAX()OVER().
functional.tabloid.test_comment_in_object_names  All DB objects types must allow name COMMENT. Also, COMMENT ON ... must allow occurence of "comment" in it.
functional.tabloid.test_crash_when_too_long_username_for_auth  crash on assert or memory corruption when too long username is used for authentication
functional.tabloid.test_db_owner_punct_chars_max_length  Allow to create DB with owner containing a character from string.punctuation set, with duplicating it up to max allowed length
functional.tabloid.test_dbp_0951_multiple_nested_cte  Query for test multiple CTEs
functional.tabloid.test_dbp_1697_windowed_funcs  Query for test SUM()OVER() and COUNT()OVER().

This list is the same for:
4.0.8.3324 2026.09.25 d3f4f818  SS