(related post Long delay in Steinberg Dorico support requests being answered - #5 by Bertie_1 maybe a Moderator could put both threads togheter?)
Hi,
I’m not familiar with electric guitar notation… but here I go anyway.
Regarding this point. In your file, the pre bend interval is defined as a perfect unison, so an F natural going to an F natural is what the program is displaying.
Change the definition to a minor second and you get:
is that not what you want to see?

