Hi
I have been doing a lot of deleting recently, no problem for me.
My trick :
I eject VSL HD so VE PRO did not find the samples, so it just load the instrument with NO SAMPLES
I did all my deleting ( I had 80 instruments in a VE PRO instance that I divided into 7 VE pro with less that 16 instruments)
When done I quit VE pro
Re mount my VSL HD
I load my VE PRO SERVER with the 7 VE PRO
and voilà
Best
Cyril