MSSQL and Polish characters

Hi,

i have problem with write to mssql db polish charakters (ą ę ? ś ł ż ź ć ń) from application.

Aplication is setup for UTF-8 encoding (localization and form characters encoding)
DB is with collation Polish_CI_AS field in table is nvarchar
keybord layout is polish programmer

when i added new record from api form i can read all polish characters like on img only in form:

but in mssql this characters are storeg like:

we tried connection via ODBC but this issue still occurse in all configuration.

Anny ideas of resolv encoding polish characters. I susspect translation utf16 to utf8 as reason that issue.

app.PNG

db.jpg

Connection encoding?

conection encoding UTF-8
DB encoding CP1250 with collation to Polish_CI_AS