Second page content partialy shows first page content

Hello there.
I’ve noticed that when I’m changing pages on categoris / autors / etc there is a problem with displayed content.

For example - There are two authors on my page.

When I’m checking the posts of one of them, first page looks good:
http://bylemwidzialem.pl/author/Art/

On the second page the first row of content is the same as on the first page:
http://bylemwidzialem.pl/author/art/page/2/

But it even gets worse when checking another author. On the first page I can see only half of his posts (2 of 4, the older ones), when the top section of category shows post of the first author:
http://bylemwidzialem.pl/author/kawul/

How can I solve this?

Hello there,

I hope you are doing well today.

I am sorry but for the last link, I can see all 4 post from that author. Please try clearing your browser cache as that may be the cause of this issue.

Best Regards,
Support