Outcome name UTF8 encoding problem

Hi Flowable team,
We have a little problem with encoding in outcome name.
When we create outcome in a modeler that contains characters Ć or Đ.
After saving this form, these characters will be replaced with characters C and D.
We passed the server the correct name and in DB we set UTF8 encoding.
Do you know how we can handle this?
Thank you.
Best regards