Hmm, now when I write Extremis, I cannot see any results from either langugage (before I could see results in the EN language).
Also, when I write something else, I can see results but they are in the GR language (the result URLs) even though I am searching from the EN version. I think the WPML option should remain active.
My main problem is when I write Extremis in EN i see Ajax results, but whille on GR version, I don’t see.
Just to clarify, Extremis is a tag on a custom post type. It is also a taxonomy name that these custom posts types belong to.
It is just strange that Ajax results show items but only while on EN language, not on GR.