I have printed hundreds of 4 x 6 hochenmuhle baryta cards on my Epson p900. I hadn't used the printer in a couple of weeks. That's pretty normal and has never been a problem.
I'm in the Northeast so it's quite dry since we are heating for a few weeks too, in case that matters.
Today I noticed the P900 lost its wifi connection. Ok, whatever, I did replace the router a month ago and while the printer was working with it, doubtless one of the gazillion firmware upgrades killed it. I created a new connection to wifi, which required me to install a new driver on my M1 Mac since it could no longer connect to it. I have long since stopped asking why this sort of thing is necessary. I think my wife thinks, "ah, Epson" is a Lithuanian curse. Then there was trouble connecting to Epson Print Layout, etc. etc.
Anyway, 90 minutes later, I was finally able to print. I only mention all this since maybe it has some bearing on the problem.
I have now printed 3 of the cards and each time, the card gets loose at the end and the last 1/4" of image is diagonally superimposed over the image. I suppose I should try a bunch of different media and sizes, but this is strange. I've had all sorts of problems with Epson printers before, but not this one. Any ideas?