Why is it doing this

[NateTheGreat]

I see a flat purple thing on my rocket

Edited December 13, 2020 by NateTheGreat

[Vanamonde]

Got a screenshot? 

[jimmymcgoochie]

Could be that weird magenta square artifact that I’ve seen before, try updating your graphics drivers and if that doesn’t help reduce your graphics settings/remove some visual mods and see if it goes away.

What KSP version are you using and what mods do you have?

[prestja]

32 minutes ago, jimmymcgoochie said:

Could be that weird magenta square artifact that I’ve seen before, try updating your graphics drivers and if that doesn’t help reduce your graphics settings/remove some visual mods and see if it goes away.

What KSP version are you using and what mods do you have?

The magenta square artifact is caused by using a older version of PlanetShine. PlanetShine compiled for 1.8.1 and higher doesn't feature that magenta square.