Links not opening correctly

Hi, guys.

I have a workbook with some links in it. Most links work fine, but suddenly instagram links have stopped working. If I copy the link and paste it into my browser, it works fine - so the link itself is properly formatted. However, if I click on it it will open instagram.com/accounts/login before quickly returning me to the main feed instead of the page the link's pointing to. This used to work just yesterday, and all of a sudden *all* the instagram links fail to open properly.

Anyone know what this might be and how to fix it? I would hate to have to find another way of doing this...

Thanks!

Ok, so I found something else strange. These two links point to the same profile - the first directly to a profile, but the second to a post on that profile.
* https://www.instagram.com/maxbo/ (fails)
* https://www.instagram.com/p/CISemdxM7uB/ (works)

That just became even stranger...