crwdns2893792:0crwdne2893792:0 Sho rener ,
crwdns2893800:0crwdne2893800:0:
Had the exactly same problem with some macbook air 13" and it was finally hardware problem, replaced trackpad + flex cable and got fixed (did clean reinstall of everything software related and didnt fix it still worked in login screen)
crwdns2892198:0crwdne2892198:0:
open