Canon Pixma Pro 100 printing Incorrect Size

[ArtistinRes]

I have tried four times to print an image and for some reason, the printer turns out incorrect size. I have printed MANY times without issues until this. I am working in Photoshop CC 20.0.6. The image size has been set and confirmed at 10.1 x 14.142 but consistently prints out at 8.5 x 12. I am printing on Canon Photo Paper A3. Settings are A3 Borderless, Matte Photo Paper. No margins have been set, the image is sized correctly, the printer settings are the same that I've used many times before for similar prints. This is a glitch I can't seem to solve. I even scrapped the first one, reopened image, re-edited, and tried to print again but got the same results. Experts, please reply.  Thank you!

[Patrick]

Hi ArtistinRes,

Please contact one of Canon's Technical Support Representatives via phone or chat. To contact a Technical Support Representative, please use the link below:

https://mycanon.usa.canon.com