Problems on instagram.com desktop

Anyone else practically unable to take screenshots from Instagram? Works fine everywhere else for me.

To reproduce: go to any Instagram page that has more than a page worth of posts, scroll down-- make sure you click on a post-- then try to screenshot the post by selecting ‘take a screen shot’ from the right click menu. Try to put the selection window over any element. Once you choose a region you will find that the selection window appears not where you chose, but at the top of the page somewhere. If you’re near the top and can still see the bottom of the selection window you can drag it down to capture what you were trying to capture, but if you’re below that point you just have to exit.