I recall this happening years back & all I had to do was select the 2015 format & it would stay that way. Lately, its been changing daily & now even changing back to 2017 responsive just from going to anther page. I find the 2017 layout hard to read for whatever reason. The "2015 online" just works & looks the best for me.
I wish it would just stay that way. Not sure if its my MacBook or what. But i do go on this site from work on a windows PC & the same things happens lately.
