Background of the issue:
I am trying to ensure that pingback links on my English posts from the Polish site include '/pl/'. Please take a look here: الرابط المخفي and all the English posts with pingback links from the Polish site.
Symptoms:
The text 'Masaż tantryczny - jak odróżnić profesjonalistę od naciągaczy? - Anahata Tantra Temple' is expected to link to الرابط المخفي, but it links to الرابط المخفي and redirects to the English page.
Questions:
Why does the pingback link not include '/pl/'?
How can I ensure the correct link structure for pingbacks?