Intended behavior or bug in Ultimate Edition?

Theres one i know for sure is a bug, that being 173 not spawning anywhere outside certain events like 008s chamber which happened after dying to it a few times, but for 049 im not so sure, after disengaging the lockdiwn and immediately sprinting out i noticed he wouldn't break chase, even after running around the whole LC zone and locking myself behind a card door and he'd just stand outside even if he had no line of sight at all beforehand.

Going into the maintenance tunnels and going to the opposite elevator didn't do anything either, still waiting for me as soon as I went back up. I haven't tested if 1499 is able to despawn him like 106 yet but I have a feeling even if it did he'd still home in on me anyway, is it possible to recontain him in this version? If not I'll just have to deal with an artificial Nemesis mod for the rest of the game.

Is it because 173 bugged and won't show up in LC or HC naturally anymore? Like a contingency that if one scp hasn't spawned in awhile the others get buffed to make up for it? Probably not but the only other explanation is my save is just reallly bugged and it just so happens to be so in semi manageable way, but its still super annoying having to rush through each area just to stay ahead of 049 and not get trapped by him.

I've tried locking him behind a card door but when he respawns he just resumes making his way toward me. I might legitimately consider upgrading the hazmat suit just so I don't have to worry about him anymore.