Dear forum reader,
To actively participate in our forum discussions or to start your own threads, in addition to your game account you need a forum account. You can REGISTER HERE!
Please ensure a translation in to English is provided if your post is not in English and to respect your fellow players when posting.
I don't have/had those stripes.
Judging from the blocky outline of the artifacts, it might just be some undetected bit corruption when loading the graphics resource file from the server (= not recognized by the error correction of the used internet transport protocol), or when loading it from the browser cache, or when reading it from memory (EEC RAM memory is still rarely used in consumer products).