Masteries unsaved problem before the match

So this happened to me:

• play a 5v5 blind pick (Summoners Rift);
• Edit one masterie page;
• The game started and i didn't save the page;
• when the game started i tried to move to my jungle (clicked on minimap). My champ path walk was from my current position to the enemy nexus and i couldn't control my champ. I died to turret;
• when i respawned i tried to click to the left of my champ (not in the minimap) and it started the same thing;
• I exit the game and before i reconnected i saved the masterie page;
• When i reconnected everything was fine :D