Envelope Pitch Shift Not Working?

I often use the envelope pitch shift in sound design, but haven’t got round to using it since upgrading to 10.

It doesn’t seem to work?

With time correction off, it appears to have no effect on the sound at all. Tried with some very extreme settings and nothing was changing to the sound in any way at all.

With time correction on, it does seem to be pitching the sound, but not nearly as much as the settings would suggest - e.g. a full octave pitch down only sounds like a few semitones (and yes Im not using formant pitch shifting!).

Also the display showing the curve is very hard to read now, with the line of the pitch shift being the same color as the semitone lines.

Can anyone help?