I bought my second box of Rollei IR (4x5). The first box went fine, though I hated the thickness of the sheet. They are thin and flimsy and consequently very hard to load into the film holders and then the developing tank.
The second box was a disaster. I got it from B&H. It came exposed! I developed (normally) one right out of box and the density was 1.24, uniform across the whole sheet! Every sheet was that way. I realized it the hard way since I already did a photo trip with that box without testing. But again, who thought of testing a black sheet before starting the trip!
The quality concern is big. The notch are not cut clean, the sheets are thin, and not an exposed box. I have no idea what Rollei is up to.
On the up side, B&H is accepting my return, but what about the investment for the trip with no IR photos! That cannot be replaced, sadly.
I thought I'd add that the film is new, bought on Nov 2nd and Exp was not till 2020.