Content from Rightside bar is flowing into the end of main content

Hi

I am not sure if anyone might have faced this issue as I searched but couldn't find any similar logged issues.

I am using the Alagna variant of the theme.

The content from the rightside bar (the last line or bullet) is displayed at the end of the main content. And any hovering over the last block (navigation block) of the right sidebar is causing the content to change the color to the same background as navigation block.

Quite strange and I am not even sure how to start debugging/fixing this...

Attaching screenshots.

Thank you,
Sudipta.