Problematic tests list (4 rows):

bugs.core_4880_test | Better performance of creating packages containing many functions
bugs.core_5210_test | Firebird 3.0 + fbclient 3.0 - POST_EVENT won't work
bugs.core_5602_test | Slow changes on domain
bugs.core_6108_test | Regression: FB3 throws "Datatypes are not comparable in expression" in procedure parameters

This list is the same for:

3.0.12.33744 2024.05.09 9cf377f6 | SS