Turret has run out of ammo and is not currently out could be substantial - the turret is eating up ammo faster than the inserted can keep up, or there's a power failure resulting in intermittent shortages. That's all great. Unless you don't actually want this, because currently it means that you ...

Yep, not a bug, the game is annoying and provides false notifications by design. Maybe just clear the notification when ammo is inserted and we don't need to have this discussion?

When a turret runs out of ammo and is then reloaded with a different kind, the notifications persists even though the turret is not actually ouf of ammo.

See the attached screenshot:

outofammo.png

Two turrets just run out of yellow ammo and got reloaded with green ammo. The turrets themselves ...

... Well, you indeed can. Color me stupid.

On the other hand, I completed a couple of runs and created a base on Fulgora a couple more times, and I never "recycled" a piece of scrap by hand, not even once. The idea didn't even occur to me. So far this never came up because I just had both on the ...

TL;DR
Add Concrete and Processing Units to Fulgoran Vault drop list to help bootstrap production.

What?
Recycling Scrap produces both Concrete and Processing units, and you need both to craft Recyclers. Neither can be found on the planet, causing a soft-lock.

Why?
You need just 20 and 6 ...