Blue Box Bug..!! So difficult to play.
It appears on everything that can be highlighted.. Just happened this patch. So annoying to last hit with big blue squares blocking every minion near the highlighted one.
It appears on everything that can be highlighted.. Just happened this patch. So annoying to last hit with big blue squares blocking every minion near the highlighted one.
I found another fix for myself! I have nvidia graphics card.
I right click my Desktop and click NVIDIA Control Panel > Manage 3D Setting > Restore! It reset my settings.
HOW TO FIX:
Locate your league of legends folder and within it, the game.cfg file (Should be something like C:\Riot Games\League of Legends\Config\game.cfg)
Open game.cfg in notepad
Find the line: "Colors=16"
If you have 16, change it to "Colors=32" and reload the client. Test in a custom game.
Tell me if this works. It worked for me, but I'm not 100% sure it works for everyone. Riot seems to have done some updates that screws over 16 bit graphics.
Repairing won't do anything for you guys at all. It's not a computer issue, not a graphics issue, this is an issue in game rendering that is happening because sometimes you'll see image cut outs appearing and it happens from turrets, to champions to minions. Take it from me, I already did a repair and it didn't work so re-installing won't do it either.
i know i dropped a bug post about it i wish a rioteer would respond to one of these like hey we see it and are workin on it again though ill post my pic
I have this same issue on NA. Once I have something selected (display in top left) IE: creeps, champs, towers - if I mouse over anything IE: creeps, tower, champs - I get a Blue/ Red box around that target.
This issue has been consistent in every game since Patch 4.20. Issue also exist in multiple game modes. Twisted Treeline & Rift Beta
I have re-downloaded the game, updated video card drivers, and adjusted every in-game video setting, issue still exist. Changing the color setting in game.cfg didn't help either.

I know its not a fix, but mine goes on and off. i found it mostly depends on wether i have google chrome open or any other applications. nothing running except league, all clear. otherwise welcome to hells version of videogames
Same happened to me....tried Repairing the game and now im currently re-installing it >.<
Do you use SIU for UI modding ? because if you do press te Fix blue textures button in SIU and all your problems should be gone if you haven't modded with SIU you should still try this maybe it'll help!
I got the same issue!!!!!Riot plz fix it as soon as possible!