If you guys are having issue finding match because Dota 2 asks for a map preference then GamingGamers.net have the fix for you. Just go on ahead onto the “Play” tab where you can find matches. Look down on the bottom where it says “No Language Preference” and click the “Select” button that is underneath it. Here you will find options for “Classic Map” and “Themed Map”. You can select either one or both, where classic would be the normal classic maps while themed would be maps where the current Dota 2 theme is played like the current Christmas theme.