Help With hastne miku proyect diva f 2nd

Issue tracker is not a ticket help desk, no one has to reply the message, it's just tracked there for reference.

Edit mode doesn't work on Diva F as well, don't have the other games to check.

Unless you're interested in Computer Science / programming / reverse engineering / emulation, spending years to learn how to code and reverse engineer to fix that bug is not a viable option for you.
Otherwise, it's something very interesting to pursue/explore in life.