Missing Monsters

Since the newest update, 0.9.5, my Nexus 7 tablet doesn't show me the monsters so I can't tell who is attacking me. Also, when I'm playing in multiplayer mode, I often have issues seeing the stuff the other player worked on - such as opened doors appear only half-opened. My system is running the Android 4.4.4, I wasn't sure if that information would be of any help. Please tell me how to fix this problem.