Vegas VFX Plug-Ins quit in middle of edit. I was adding / tweaking some VFX plug-ins on an edit and they quit responding. In fact previous working VFX filters quit working too... This all started after I was trying to build a lower-third bug composite using a png graphic and overlaying on a solid bkgrd to experiment with a key matte.

Anyways.... all VFX plug-in filters stopped responding and working.

Checked all composite settings...nothing different.... opened previous edit saved version...same deal.

Turned off PC...restarted...opened Vegas...same deal...

Help!