End of Game Data While Spectating

Hi guys.

I have a problem when i try to spectate games. While i spectating live games, game is ending in the midle of the game with “End of Game Data” alert. What can i do about this? Should i just wait new patch or there is something to do? I can watch videos and streams so there is no problem about my connection.

This problem started like 2 days ago, spectating was working perfect before it.

Thx for answers…