I have never seen a turret outside

[MasterEvilAce]

With the default config, I've never seen a single turret spawn outside, in 5+ hours of play/testing, with lots of reloading of levels.
If I increase TurretMinSpawnRate to 5 and TurretMaxSpawnRate to 10, I absolutely see turrets spawn.

I'm wondering if it's just super unlucky or if the logic is exclusive of the max value on accident? So 0 to 1 turrets is always ending up as 0 turrets. (and 0 to 2 turrets would end up in seeing either 0 or 1 turrets.)
Just a thought

[snaketech-tu]

Thanks for the report! This might be due to the safe zones for turrets which results in them being deleted rather than finding a new suitable spot for them. This will be my next fix.

[snaketech-tu]

I just pushed a small hotfix today that addressed several issues but I also nerfed the safety zones a bit. Turrets currently have a slightly higher spawn radius than landmines so they could spawn a bit farther off.
The other fix promised in my previous message is still coming though. Just a heads up!

[snaketech-tu]

This has been fixed in v1.1.2.
As you presumed, this was directly caused by the max number being excluded from the spawn range which caused no turrets to spawn by default. Thanks again for the report!