This is what I have found regarding any errors
[WRN 19:05:26.380] Texture resolution is not valid for compression: 'C:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program\GameData\CameraTools\Textures\icon.png' - consider changing the image's width and height to enable compression
[LOG 19:05:26.380] Load(Texture): EditorExtensionsRedux/Textures/AppLauncherIcon-Off
[WRN 19:05:26.385] Texture resolution is not valid for compression: 'C:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program\GameData\EditorExtensionsRedux\Textures\AppLauncherIcon-Off.png' - consider changing the image's width and height to enable compression
[LOG 19:05:26.385] Load(Texture): EditorExtensionsRedux/Textures/AppLauncherIcon-On
[WRN 19:05:26.391] Texture resolution is not valid for compression: 'C:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program\GameData\EditorExtensionsRedux\Textures\AppLauncherIcon-On.png' - consider changing the image's width and height to enable compression
[LOG 19:05:26.391] Load(Texture): EditorExtensionsRedux/Textures/AppLauncherIcon
[WRN 19:05:26.396] Texture resolution is not valid for compression: 'C:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program\GameData\EditorExtensionsRedux\Textures\AppLauncherIcon.png' - consider changing the image's width and height to enable compression