Two things, if you alt tab after accepting it says you dodged, difrent mastery's showing up.
Hey so i am going to explain two bugs with one post. Both are on the same computer a dell laptop it does have a ssd, a graphics card, and 16 gb ram, and windows ten. I can go into more detail i don't really know much about computers should be said. (also i am going to state everything so 80% of this might be useless)
OK SO, first bug i was in a ranked queue yesterday (3/15/16 10:30-10:32pm est) and when i clicked accept everything was normal i was placed into the champion select and after bans i second picked Leona, i went to change my mastery's from ad carry called (ruler of the bot lane adnotjl) to (leona) but it was gone all the names where different i tried clicking on all of them nothing changed the names by the way where like spell caster and attack mage, (spelled correctly i misspelled all of my mastery's and i am to lazy to fix it) i went into that small editing window and the text (a suitable error message could not be found) showed up. Someone dodged and i immediately checked my mastery's normal, with no problems. i should say i played 8 games prior with no error and got of a 20 minute leaver buster penalty from the day before on my first game. also i afked for a bit and there was a shot azir disabled message that dissapeared when i refreshed, is it possible that there was a patch the second i accepted and that caused a save file to be mixed? Anyone i have had no problems since.
Second bug. if you alt tab right after clicking ready on a ranked game it never loads the champion select, making it appear like you dodged (i hate this so much its happend three times to me and i am not about to get screen shots because i just got out of a leaver buster for 20 minutes and i do not want a ban. it is definitively repeatable if i do it, i just do not want the ban. (im tempted to end this with a cheesy line like any rioter so) Good luck in the Fields of Wisconsin and may luck brie in your flavor.