Blank Technicpack Launcher

[Vlamingo200]

Hello! So i've been playing with Modpacks for a while. Recently, while i try to open my launcher, it shows the usual loading screen, then switches to a completely blank window. I am forced to exit from the launcher since nothing goes on. I played with the launcher a few moments ago but now i don't know what to do.

I have a Mac OS X Yosemite .

[LividTide]

How long have you waited on the launcher? I just had the exact same problem. After opening and closing a few times, I just pulled it up and waited a few minutes, opened it, and voila.

[MechanicalMouse]

I have this issue too. It use to be on and off so I didn’t think much of it, closed it out and opened it again, now I can’t get on at all. I’ve deleted and redownloaded technic, and still have the same issue. I don’t know what happened because it was working fine just last night. 

I’m on a Mac, OS X El Capitan, and Java version 8.