Wow 8.13 really fucked up the game, technical issues-wise.

I had trouble logging in for the first 2 days when the patch hit.

Missions aren't working right now and Riot still hasn't fixed it, even though it was several hours ago.

Match histories aren't being recorded.

Tutorials were broken on my other account for a whole day.

The highest upvoted threads right now are threads where people in EUNE have their games crash on them.

I've tried sending multiple tickets and none have been responded to yet.

I'm afraid 8.13 got rushed out in an incomplete state.