Board Thread:News and Announcements/@comment-27575896-20170109225547/@comment-25646419-20170309200547

Visual errors are a sign that the player needs to clear their cache. This is highly recommended to do any time a new patch is pushed out. If that doesn't work, you might also need to clear your Flash's cache.

Clearing Browser Cache: http://www.wikihow.com/Clear-Your-Browser's-Cache

Clearing Flash Cache: https://forums.adobe.com/message/4278569

Verifying Integrity of Game Cache for Steam Users: https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335

(For any readers, this information may be found under the "Technical Issues" section if you search "FAQ".)