on iphone 8 can't see assigned identifier to element while can see it on iphone X

I am assigning accessibility identifier to searchfield, and if I run UI test in iphone older than 8, it works fine, through debug description I see that search filed element has identifier, and I can tap on it through xcuitest, but on iphone 8 it doesnt work, debug description shows that identifier is not assigned to search field. Same OS version, but different devices