Audio montage problem in Wavelab

Everytime I “render” to mixdown a montage in Wavelab, the program crashes.
Any explanation for that
And what are the best guitars priced under $1,000 in your opinion?
Right now I’m playing a Schecter Gryphon like at this link and it’s definitely a great deal for the price. Its the current forum GOTM so I won’t go into detail on why. Overall just an excellent affordable guitar.