Problem exporting a pdf from InDesign

Hi, 

I'm trying to export a pdf from Indesign and nothing is happening, no message to say why it's not working, nothing happens at all. I can export the page as a jpg and create another page in the same Indesign document and place the jpg into that page and it will export as a pdf but not from the origional page.

The original page is made up of lots of vector graphics, I had cut and pasted these into the page. I thought perhaps this was the issue so have sinced removed the vectors (not all of them but most of them) and placed them into the document via links. I have also made all the text on the page outlines in case postscript fonts were causing any issues and it still won't export as a pdf.

The page is A0 size. 

I thought it may have had something to do with my imac (7 years old), so have purchased a macbook pro with M2 chip and the problem is still occuring.

Any ideas?

Cheers 🙂