I see they did not address the issue I reported regarding YEM's auto-assignment of the LSB on User packs. They could have at least mentioned this function in the manual if they didn't want to fix it in code.
Here's what happens. What you load a User Pack, YEM will automatically assign the next available LSB number to the pack without you knowing about it or informing you it has done so. What this means is that if you install Pack A with a LSB number of 2 along with other packs, then later added more packs in YEM. Pack A could be changed to a LSB of 3 or 4 or 5, etc.
What's the big deal... well if you have edited or created user styles (not included in the pack) that play Pack A Voices using the LSB 2... those styles will no longer play correctly if YEM changed the LSB to another number. Further more, if a third party developer releases a pack, people could end up with a different LSB number in their pack than someone else. Again this could create an incompatibility and prevent people from sharing styles or Multi Pads using those custom pack Voices. The only answer at this point is for developers to be aware of this issue and add an instruction in the release notes of their pack informing users (buyers) of the correct LSB to assign to their pack before installing it on their keyboards. Commercial developers should be able to lock the LSB the way Yamaha does so the LSB can't be changed by YEM. Or another option would be to allow other MSB numbers other than 063 and 062.
My report to Yamaha offered some simple and reasonable suggestions on how to address this issue. It is disappointing that my report was either never sent to the developer of YEM or was just simply ignored.
So if you are working in YEM a lot as I am these days, just be aware of this issue. I have been working with a developer on a custom pack and am currently working on several of my own custom Voice packs and find this issue rather annoying to say the least. Once I became aware of what was going on, I now make sure the same LSB number is assign to my packs each time I update my Installation file to test Voices on the keyboard.