Space enemies spawn during invasions

[CongratsIsTrash]

Steam or GOG

Steam

Single Player/Multiplayer

Both

Operating System

Windows 10

Terraria Version

1.4.0.5

Controls Used

Keyboard/Mouse

So, I'm pretty sure that invasion events (Goblin Army, Pirate Invasion, Pumpkin and Frost Moons) should be overriding all spawns when on the surface, but for some reason, space enemies can still spawn during one of these invasions, which seems pretty off. Who knows, but it's definitely annoying when a Wyvern spawns when I'm already trying to fight a Pumpking, and it just destroys me.

Sorry if this isn't a bug. Maybe just a QOL improvement?

 

[Sigma90]

Not a bug unfortunately. (Or if it is a bug, it's been this way since 1.2.4.1...)
You're correct that the invasions and moon events normally override surface spawns. If you are too high up, the space enemies start to spawn. And if you're in the Ocean, you can get ocean enemies too. Found this out the hard way when an arena I built was a little too high up and Harpies/Wyverns blocked the event enemies.