PvP time out forces me to use TP instead of smite?

Really now? I was top first, then because of Riot's unstable client, when I got picked for Jungle, the PvP timed out and switched me back to TP instead of smite.

I switched back and SAW with my own two eyes that I switched to Smite before the game started, and guess what? The game forced me back to TP for jungle.

Why is the client so unstable and buggy? My experience with League this season so far has been extremely negative (not playerwise, though that is starting to get up there), but mainly through the mechanics: It forces me to use previous rune pages and masteries, the very constant PvP time outs even after multiple fresh reinstalls, after multiple cleanouts of my PC, even on different computers, the PvP client timeout is happening too often on my account.

Is there a way to get around this? I have looked constantly online and at this point, I don't think there's a fix for the constant now every single game PvP time out, and I don't want to do another fresh reinstall. I'm on my third already.