Problem: EU players are locked for week 2

So I was messing around with my roster for week 2. I can switch around NA players but not EU players. I asked my buddies who are in the same Fantasy League and they have the same problem. I'm assuming it's because EU LCS has started, but it's a bit odd that you can't switch around for next week.

Excerpt from the How To Play tab: "Once matches start, your roster for that week will be locked and you can start editing your roster for the following week's matches."

Anyone else have this problem? I'd be surprised if you can only edit your roster from monday to thursday, especially considering you can change the roster with the Add / Drop function, just not with the Roster function.