Safari "Open with start page" selection disappeared.

Hello all,

Recently something happened to my Safari on Mac running Mojave. The "Safari opens with:" selection lost its selection of "Start Page" and it is rather uncomfortable for me. I don't really want to think about what was the last thing I opened while opening my device in a coffeeshop or so. Is there any way that I can get that selection back or it is permanent from now on? (I believe recent security update safari got caused the missing setting.)

Thank you in advance to anyone answering!

Edit: I believe the setting was called "Safari opens with: a New Window" rather than start page or smt.

Cheers,

~bio