No it works fine, I just did it, but I found a new bug with it in the software while I was testing it haha.
He was using 'Copy Bars'. The 'Insert Blank Bars' function works just fine here, but theres a trick on the software.
The number of bars doesn't match on the computer and the MPC Studio. When you first hit Insert Blank Bars, the computer screen pops up and is set to 1, but my MPC Studio was set to 2. It only inserted one bar when I did it, and I noticed what it was doing afterwards heh. If you try to redo it again, it leaves the hardware set to your last choice, but the computer shows 1 again and it always goes by what the computer says when you hit Do It. The Bars choice doesn't sync up unless you change it on one, and then both will jump and match up.
Other than that though, Insert Blank Bars works perfectly fine, I just inserted a shitload of em at the beginning of a sequence.