I’m having a similar issue – many strings introduced by my parent theme (Genesis Framework) aren’t translated by Polylang (search box, 404 page, “filed under”, etc.). I know that Genesis is internationalized, and I know that some folks out there have already translated Genesis, but I don’t know how to reconcile this with a complications of a multilingual site using the Polylang.
Intuitively I feel like the solution to this is really straightforward, but I’m a beginner and I haven’t been able to get anywhere with this.
Any advice would be appreciated.