Placed PDFs in InDesign not rendering correctly
Recently, ads I design in Affinity Designer and export as a PDF (which I have been doing for years without problem) suddenly will not open properly when placed in InDesign 2019. Some elements are missing. I am using Mac OS 10.14.1, Affinity designer 1.6.1 and InDesign 14.0.1
The screenshot shows very clearly the problem. Every application I own will open the exported PDF correctly (Adobe Acrobat, Mac Preview, MS Word, Pages, as an attachment to email, etc, etc, except for InDesign 2019 and Photoshop 2019.
I would be grateful for your thoughts.
I have also sent this to the Affinity team, but I suspect they will say that as it opens correctly in every other app under the sun, it must be an Adobe problem, which I have to say seems logical.

