We just encountered this same scenario on our Konica-Minolta AccurioPresses. We purchased and service our machines through a Konica-Minolta authorized reseller, and it's safe to say this toner is legitimate. According to their service manager, the "H" ("hybrid") toners come from a different Konica-Minolta factory and use a slightly different formula for their composition as evidenced by the sketchy boxes. There's apparently a service bulletin posted on these new toners as well.
Unfortunately for us, this wrecked havoc our AccurioPress 6120 for about a week. We developed prints with hazy gray backgrounds and random black scratch marks. Switched developer, developing unit, drums--no dice. The only solution was to keep running prints until all the old non-H toner was out of the machine--which as you might imagine unfortunately takes a long time and a loooot of clicks. Obviously this also is an annoyance with the paper shortage.
Thankfully, the quality problems haven't returned on our 6120 and we've been going strong for about a week with exclusively the new toner. Double-thankfully, I haven't noticed quality problems on our c6100 or c4080 just yet with the newer toner, but I wouldn't be surprised if it happens just given the change in formula.
If you're also encountering issues and your service team is scratching their head, my strongest advice is to stick with whichever flavor of toner you have the most of for as long as possible. Since our new shipments all feature new labeling, we tossed all of our old toner into a corner for emergency usage only.