Originally Posted by
Priaros
I use Wurst as its a very very good client but that is a bug I've encounted myself and it is annoying. How you solve it is:
1. Import your alts.
2. Click on the alt you want to use.
3. Click the Use button (The screen will flash)
4. Join any server (it won't log you in as that alt though)
5. Leave the server
6. Go back to your alt manager
7. Click on the alt you want to use.
8. Click the Use button (this time the screen will not flash, it will take you to the main menu, which means you're now using that alt).
Repeat steps 2-8 when you want to use another alt. For the moment, Wolfram hacked client has the best alt manager