The following fixes have been made in the Piapro Studio version 3.0.3.0 update.

• Support for Miku NT Original library 1.0.0.6.
• Fixed bugs:
      – Fundamental fixes to pitch editing bugs.
      – Fundamental fix for Sil / Asp behavior
      – Fixed other crashing bugs.
• Implemented the level meter to indicate the volume of the track when playing.

[NOTE] Piapro Studio NT 3.0.3.0 is installed with the Miku NT Library 1.0.0.6 installer. See here for more information.

<About processing perormance>
  The longer the song, the slower the editing response tends to be, and we are continuing to work on improving this.
  We hope you will wait for future updates.