Chests and signs are glitchy.

I Use A HTC Evo 4G Lte. Sometimes The Chests And Signs Follow Me Until A Certain Distance Also The Chests Flash For Example The Chests Disappear For Less Than A Second And Comes Back And Keeps Doing That. And With The Signs Sometimes The Words On The Sign Flash Like The Bug On The Chest. The Signs Also If You Put A Sign With Text On It Then If You One With No Text Close To The Sign With Text On It Then Both Of Them Or One Of Them Starts Flashing Like The Chest.