Okay so basically i made a map and i have made maps before where i have used a custom thumbnail and when i did the exact same thing. as in put the custom image in the content folder renamed it preview in the correct one and did everything it is still coming up as my preview image in the editor. It doesn't show my custom one on steam, the editor tab or on the subscribed tab on secret neighbor but it does show up when you actually load the map into your lobby? like the little preview image above the match settings is the only place that the custom one shows instead of the editor one. Please help somebody.