Error in parameter list / ... Result code = -50 File = LogicSampleClip1

If i create a region of midi on a software instrument &

bounce that to an audio track, in the same project, via the audio bin

I am unable to stretch/shrink that audio anymore using <alt> drag or

use Time and Pitch function in the lower file edit window.

I get:

Error in parameter list / Not an existing volume, and no default volume / Bad positioning information / Bad drive number

Result code = -50

File = LogicSampleClip1

I have plenty of disck space.

Any idea?