For "k" is ok.
[Linked Image]

Polish diacritics letters making this issue is ś, ź, ń.
Quote
select 'Test message: j' from dual
union
select 'Test message: k' from dual
union
select 'Test message: ś' from dual
union
select 'Test message: ź' from dual
union
select 'Test message: ń' from dual

[Linked Image]

Attached Files
2024-04-19_22-32.jpg (4.14 KB, 52 downloads)
2024-04-19_22-34.jpg (4.3 KB, 50 downloads)