In the French version of the Canada site, when I search for 'Arctic' term and select the Archive content, there is a result from the EN archived content. 

Steps to reproduce: 

1. go to the Canada dev site, FR version, and search for the 'Arctic' term
2. select Archive type of content -> https://k8s.p4.greenpeace.org/canada/fr/?s=arctic&orderby=_score&f%5Bctype%5D%5BArchive%5D=5
3. there is only one result displayed, but it is from the EN version of the P3 site -> https://wayback.archive-it.org/9650/20191117085806/http://p3-raw.greenpeace.org/canada/en/Blog/you-cant-sink-a-rainbow-you-cant-seize-a-sunr/blog/47961/ 

I think it is because the type of content on P3 is blogpost, other type of content seems to work fine.