Cubik Studio

I can load Cubik Studio, but I can not use it. After it´s opened it disappear from the screen and I can´t get it back. I reinstalled it two times but it didn´t help. Do you know any ways to get this working again?

this is happening to me too

Launch Cubik and when white screen appears keep pressing "Alt" key.
This bug should be fixed in 2.9

Thanks, this is working:)