I have a problem with my Minecraft after update on 1.9 version. Before update I could play without any problems. Now i have problem a problem with entrance to Minecraft realms. When i click on the window with "Minecraft Realms" one the screen shows me inscriptions "An error occurred (401) invalid session id. I tried everything re-install minecraft a lot of times and re-log my account too nothing helped. I play without any mods. I had previously installed optifine but with the removal of Minecraft optifine also was removed. My friend who plays there with me no such problems like me. Im sure that i have a premium minecraft because I bought it about a week ago. What can be wrong? I'm waiting for an answer and help. Greetings.