Yeah, I noticed that too, but the only Roland I had for a while was a Juno 6 like... 20 years ago, I never know if that's like the original or not.
It's usual to see some synths with this issue due to the timmings of the attack envelope, but those are usually a "feature".
If Jupiter 8 is the next in line for the VST3/64bit upgrade, then I guess this is really a good time to ask for this fix