Unfortunately a bug has been found, that influence PITCH behaviour in instruments based on Vestige.
For now, i would recommend not to use PITCH for 'real projects', because its settings are not reliable.

A way to 'bypass' the bug, is to open the instrument with changed PITCH and just scroll the set-value, one up, and then down again to set-value. That sets the pitch to the value you saved the project with.

There are no reasons for comments, so i will lock this.