[???] Linux - XFCE: Could not unmaximize instrument window

When i detach instrument window because i wanna see phrases on the different screen
the window is maximalized and “unmaximaze” button does nothing. So i cant drag the instrument window to the second screen.

Renoise 3.01 works allright.

Renoise 3.1 64bit beta1
Debian testing 64bit
last XFCE window manager

Have you tried double-clicking the window header?

I realoaded the song and everything is allright. I dont understand this.

Btw. can you make the Icon change when the window is maximized and not?

Have you tried double-clicking the window header?

Dont remember but i tried almost everything till i saved the song and reloaded it