libcrypt-nss-2.26-8.fc27.i686 appears to be missing from this update [for x86_64 install]
I assumed it was some mirror issue - and downloaded this rpm manually from koji and installed this update (a week back). But I suspect this rpm is still missing. [well 'dnf list extras' still flags it for me]
this update fixed https://bugzilla.redhat.com/show_bug.cgi?id=1494563#c1 for me
I had python2-tracer-0.6.11-1 installed [which provided /usr/bin/tracer] - but with this update - /usr/bin/tracer no longer exists.
So I had to do: yum install python3-tracer tracer-common
Somehow this switch should be managed automatically? [or /usr/bin/tracer be preserved in python2-tracer?]