Does Nordstrom get confused if you use leftover shipping labels with other items?

I used to do this when most items came with invoices and sticky labels because sometimes in s multiple order I’d return one item right away and
another later.

Since now I have to print a lot of return labels I usually use the “ matched” return slip with its USPS return label that I tape on.
But my printer went cray- cray and printed the labels off - center and I can’t reprint tomorrow. The item part is okay but the postage part is off-kilter so I was afraid to use ( I COULD ask my friendly postman, but..)
However I have extra sticky labels from items I’ve kept.

I thought I’d read somewhere that that might result in confusing barcodes or something and the wrong item get checked in by the Nordies staff processing the return.
It would be so great if I could just use the leftovers labels I have. I do have items boxed separately, so not mixing up parts of different orders.

I may be trying to make rocket surgery out of a molehill, or something.
What say you?