Also, I noticed it seems to mostly only happen on pages that have less content on the left side then the content in the sidebar (shorter).
I have disabled all plugins and the issue remained so it is not a plugin causing it. I have reactivated and it is still there.
I seem to have sort of fixed it by adding:
position: relative;
bottom: -300px;
width: 100%;
to the element, not really sure that’s the correct way so if anyone has any ideas please let me know, thanks