\AppData\LocalLow\Ludeon Studios\RimWorld by Ludeon Studios\Player.log
Ends up in over 50GB size.

Player-prev.log have this written thousands of times:

Root level exception in Update(): System.NullReferenceException: Object reference not set to an instance of an object
at Carousel.CarouselMapComp.FixUVs (UnityEngine.Vector3[] tempUVs, UnityEngine.Vector2[] origUvs, System.Int32 i, System.Int32 flipped) [0x00000] in <5209ca1ac8f9417c9b95d2214b28b08e>:0
at Carousel.CarouselMapComp.TransformAtlas (Verse.LayerSubMesh mesh, Verse.TextureAtlasGroup group) [0x00130] in <5209ca1ac8f9417c9b95d2214b28b08e>:0
at Carousel.CarouselMapComp.UpdateSection (Verse.Section section) [0x000a3] in <5209ca1ac8f9417c9b95d2214b28b08e>:0
at Carousel.CarouselMapComp.AnimationStep () [0x00110] in <5209ca1ac8f9417c9b95d2214b28b08e>:0
at Carousel.CarouselMapComp.Update () [0x0004d] in <5209ca1ac8f9417c9b95d2214b28b08e>:0
at Carousel.MapUpdatePatch.Prefix (Verse.Map __instance) [0x00006] in <5209ca1ac8f9417c9b95d2214b28b08e>:0
at (wrapper dynamic-method) Verse.Map.Verse.Map.MapUpdate_Patch3(Verse.Map)
at Verse.Game.UpdatePlay () [0x00031] in <81af9f8a18324e17b286924a43555a7c>:0
at Verse.Root_Play.Update () [0x00032] in <81af9f8a18324e17b286924a43555a7c>:0
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 39)