(In reply to Ludwig Nussel from comment #6) One problem can be perl(Unicode::Collate) >= 1.19 as this might break biber as it can seen on current https://build.opensuse.org/package/show/Publishing:TeXLive:42.2/texlive ... this repository was for the port of TeXLive 2015 to Leap 42.2 and after this port there had happen an update of perl-Unicode-Collate