VST Scan

Hi , This is me trying out N-Track for the umpteenth time,although this program is improving it always delivers surprises of the wayward type . the last version it was the G.U.I. freezing how ever this seems to be quite stable now.
This version (4.0.11.1702) seems to have a brain of its own regarding forcing a VST scan at when it feels like it , this causes a computer freeze until it stops . Is there any way to stop this ?.