From @mscha

  for ^10 -> $i {
  once { say "This runs." }
  say $i;
  once { say "This runs as well." }
  next if $i < 5;
  once { say "This should run but doesn't." }
  }

Actual output​:

  This runs.
  0
  This runs as well.
  1
  2
  3
  4
  5
  6
  7
  8
  9

Expected output​:

  This runs.
  0
  This runs as well.
  1
  2
  3
  4
  5
  This should run but doesn't.
  6
  7
  8
  9

Possibly related bug​: https://rt-archive.perl.org/perl6/Ticket/Display.html?id=102994

Latest Rakudo Star​:
This is Rakudo version 2016.11 built on MoarVM version 2016.11
implementing Perl 6.c.