1st render each individual note around the part that it crashes
then try rendering the UST with a different VB
if it doesnt crash with a different VB and only crashes with Gahata Meiji something might be wrong with the OTO
(THIS is an example)
lets say the note the red arrow is pointing to is the one where the UST crashes
click on the note and go to "voicebank properties" and open the OTO for that note
it might look like this :
move the blue area back till there is a white space and save. if it still crashes, or crashes with other voicebanks im not sure why