Same thing happened to me. Have been using W3TC on the site for several years with no problems, however, for some reason all of my pages and posts earlier today looked like KennyLL posted above. Couldn’t figure out what was going on. As I was trying different things I deactivated W3TC and now my site is back to normal.
Figured it out !
It works the way it should
Thanks JTS_IL for the help !
Got it to work.
Thank you !
That was a fast fix !
I just installed the update and the Line icon looks great.
Thanks again.