Just when I tough I solved the problem by opening in Corel Draw and saving prepress PDF. Created a much lighter PDF and PC was ripping. Looked good. Sent to print. 2h + later and over 20m vinyl printed at banner speed I realised that blue is too dark. Coreldraw changed the approved colour. What a waste of a long day this was, never mind the vinyl and the ink.
Thank you both.
I will try these tips next tips I’m on such project.
I forget sometimes that 10m x 4m print is not your ordinary everyday job and will take some time ripping… and printing.
All done now. Struggled with this project, wasted some material but made it at the end.