Back key takes me home instead of 2nd tab

[Android Central Question]

I used to have a feature where when I used android I could go back in chrome via back key to the tab behind it if it had nothing before it, then it became where as long as the image didn't originate from a tab still open I could. But now I can't, so everytime I want to go back a tab I have to manually do it which is annoying and I'm not doing that. Is there anything I could do to fix this, this was not an update.

Tl:dr Used to be able to go from tab to tab, now it takes me directly home. How do I fix this? Thank you