[Client] Disconnected and displayed inaccurate information

When I play a ranked game(12.15.16 1am~2am), my client disconnected from the server even though my internet was still working. Few minute after, some of the champions of both teams are displayed as level 1 and moves abnormally for a while.

(ps: I changed the client from new version to old one because it has kept disconnected in every game while loading the games)