Faint white lines when printing from Lightroom Classic

Sometimes when I print 4x6 prints from Lightroom I get faint white lines that go edge-to-edge horizontally across the image. Printing the same image to 5x7, letter, or 13x19 works without issue.

I've tried multiple paper types and driver settings and I've been unable to prevent the white lines. If I take the same image into Photoshop, it prints without the white lines, so it doesn't seem to be a hardware problem.

It's inconvenient for me to jump into Photoshop just for printing, so I'd rather avoid that, if possible.

You can see the lnes on the attached image. There are two lines, one at 3cm from the top and the second at 5.6cm.

Any ideas?