Essentials 2020 (can't print out what is on my screen, parts are missing)

I have recently bought Essentials 2020. I'm having big problems with Corel support as basically there is none ! I used to use Corel 10 on my old PC but no longer have that software. After downloading Essentials 2020 I have opened up some of my artwork for my labels that I use for work. They are all displaying fine on my monitor but when I go to print I am only getting about an 8th of what's on the screen in my print. I have checked my printer and run a test print and the printer is fine. There is no smudging or any thing like that on the print it's just missing lots of what's on my document. I need to get this sorted out as it's to do with my work and Corel support are rubbish. I'm thinking that there is something that I'm missing, like layers that need flattening but I can't see for the life of me what it is. Please can you help