@Monika64, @Andrea9 Yes, the reviews have been out of order lately. Wish I could give you a definitive answer, but I can only tell you what I think is happening. For some time now, reviews in a language different from the language selection set by the host were listed at the end. So, for example, if my language selection is English, any review in French was listed at the end. If I change my language selection to French, the French reviews would appear first, the thought being that reviews in the same language as my selected language would be more relevant.
What I think is happening is that someone changed the programming to key off of the guest's country of domicile, not language, so that reviews from guests who live in a country other than the host now appear in the end and out of date order. So what is happening now is that if I am in the US, reviews from Australians, New Zealanders and British guests would be listed at the end of my reviews despite being in my language preference of English.
I know this has been reported to Airbnb and my guess (and hope) is that it will be corrected soon as many hosts have complained.
As with many fixes, programmers tend to batch multiple fixes at the same time, not one by one, so I would expect this to be resolved in the next release of fixes.
Not speaking for Airbnb, mind you, just what I think is happening. 🙂