Hello! Over the past few days my PS started to act weirdly leaving black traces after I post an image (not always but i never know when it will happen next), it spoils the picture completely even if i do not save the file and try to close and open it again, it still opens it with those black traces. Does anyone know what could be done? I've been using PS for about a year, and nothing like that has ever happened before. Thank you very much in advance!