[dns-operations] DNSSEC validation failures for reverse delegations?

[Stephane Bortzmeyer]

On Sat, Dec 08, 2012 at 03:26:43PM +0100,
 Sebastian Wiesinger <dns-operations at ml.karotte.org> wrote 
 a message of 55 lines which said:

> since last night around 0:30 CET I'm getting sporadic validation
> failures for a hand full of reverse delegation. Not many but a few
> each hour, from seemingly unrelated delegations:

They're not unrelated, they are all from APNIC.

> Any idea what's going on? I'm not sure it's something interesting
> but I hadn't had messages like that before and now I get a few every
> hour.

The problem was also reported on another list but, no, no official
statement from APNIC.