Helvetica Neue Light is being converted into garbage during the export to pdf process.
The same is also happening with Helvetica Neue Bold
Helvetica Neue Thin is fine – I haven't tested other weights.
There maybe a conflict within the programme with other versions of Helvetica that I run which also have the style designations of Light and Bold...
I don't have this problem with other programmes and I have run all fonts thru Font Doctor (latest) with no problems found, so I suspect this is specific to Publisher.
I am enclosing an example pdf.
Airport P3801-1.pdf