WordPress Post Text Editor Not Allowing Me to Copy/Paste

Hi guys,

So I seem to have some weird issues with one of my websites and google chrome browser, specifically when I am trying to edit a post using the “Text Editor”.
The issue I am experiencing is that I am trying to copy/paste stuff while using the text editor within any given wordpress post and for some reason no matter what text I highlight to copy, when I paste it I get this as an example:

– See more at: https://sitename.com/wp-admin/post.php?post=380&action=edit#sthash.VIGvo66g.dpuf

This is only happening on the Chrome browser, and I know you might say just try Firefox, I did and it does in fact work with Firefox but I am just curious to understand what may be causing this to happen.

I have cleared my cache and cookies, I have cleared my cache on my W3 plugin and logged in and out as the admin on my website. I have tested this issue out with another of my sites and I am not having these problems. Both sites are on the same dedicated server as well….What can it be?

Here is my url: https://bit.ly/oKDRxa

Thx!