CUETools window isn't dragging out.
It works fine here.
I think I 'jumped the gun' reporting this one.
Main Window will only drag resize height when the 'batch log' window is open. Main Window will only drag resize width when one of the 'browser' windows are open.
The same behavior is present in 2.1.4, 2.1.5, 2.1.6, & 2.1.7.
But thank you for promptly advising about the new version. I'm a fan of this tool (especially CUERipper).