Polish diacritical marks

[Sorry I'm new to the list and probably should have included the list on my
reply. I just joined so I don't have access to reply directly to your
email to the list. I just saw it in the mail archive.]

What happens when you type those special Polish characters? Which LO

I'm on LO 7.0.4.2 and don't see the issue. Do you have the problem on 7.0
or 7.1?

If you see the problem on 7.1, then I'd suggest: reporting the bug as Mike
mentioned and possibly try downgrading to 7.0 for the time being to see if
that fixes it.

If you see the problem on 7.0, then I'd suggest upgrading to 7.1. It's my
understanding that 7.0 is end-of-life so I doubt there's much value in
reporting a bug for that version.