This is most likely not Minion's fault.
I think this is Launcher related, and to be more specific migrating to EU server related. I haven't had time to see the official forums yet though. My friend whom doesn't have any addons nor Minion is having the same issue. I do too but luckily I have the game data files stored both HDD and SSD. Many of my guildmates are having the problem as well (from EU).
So like OP said, installing the actual launcher again seems to fix the problem.
So if you want to play on EU server (US players probably don't have this issue at all, I assume as Cairenn didn't have it right ?):
- Make sure you have your game data files saved somewhere safe or rename the folder, DO NOT click "Install" where it should say "Play" until you have done so.
- Uninstall the launcher and download it from the your account page.
- Execute Install_ESO_Beta.exe and choose where you want to install it.
- Open the Launcher once it's installed, the launcher will then most likely ask you if you want to migrate to the EU server (select yes if you're from EU). You can double check from the launcher settings that the EU server is selected.
- Click "Install" and then "Pause". Close the launcher (make sure it's closed).You should now have a folder called "The Elder Scrolls Online EU" in the same location where you installed your Launcher.
- Copy the game files you had secured earlier into that folder (or rename the folder etc).
- Run the Launcher and you should be able to see the "Play" button - or the client might download some updates still for the game.
Use it with your own risk. It worked for me at least and I'm currently playing on the EU server
For the side note, EU client will create a new folder in your My Documents\Elder Scrolls Online\ and instead of "live" you have a folder called "liveeu" You might want to copy stuff over from the live folder the the liveeu folder (your addons, settings etc).
Windows - <drive>:\Users\<username>\Documents\Elder Scrolls Online\liveeu