I did have some mod mostly just store and QoL mods but never use mod that change enemy AI. anyclue? is the game itself bug or mod is at Fault?

You need to be more specific. Which enemies? Maelstrom (due to their excessive obsession with cyberware) is as far as I know more likely than others to detect you when using quickhacks.

It's the way the game is now. I don't remember which patch it was introduced in, but they made enemies start looking for you the moment you do your first combat hack.

The only upside is, if you knock out the guy who is alerted, the progress bar resets until you hack again.