I placed the attached pdf into Affinity Publisher 188.8.131.527 and Affinity Designer 1.6.1. It has embedded chinese fonts. After placement, the text looked all garbled up. (Note: This PDF works fine in Adobe Illustrator and inDesign, a friend of mine tried it)
I was able to work around this issue by first converting the pdf to an eps with ghostscript:
gs -q -dNOCACHE -dNOPAUSE -dBATCH -dSAFER -sDEVICE=eps2write -sOutputFile=output.eps CO-invpw19_CHS.pdf
Then, the converted eps file was placed properly in Affinity Publisher and Affinity Designer.