Board Thread:Support Requests - Getting Technical/@comment-27713488-20180212011817

I uploaded a large PNG image to the wiki, and the gives me the "Error creating thumbnail: Invalid thumbnail parameters". The image still loads correctly at full resolution. I attempted to reupload but the same issue occurred. Today it happened again to another user with a PNG of the same dimensions, prompting me to create this thread.

JPEG works but I don't want JPEG artifacts or the increased file size. 