BBC iPlayer - delay until programs become available

Since about Monday 12th May it seems that programs take much longer to get into the BBC iPlayer listings. Now I have to wait until next day! This seems to apply to radio 3 and 4 and possible others. What is odd, is that at about 9am, the stuff I never listen to _is_ there (from midnight up to 05:45am Farming today). But then there's nothing.

Anyone know what's changed?

My system details:
Logitech Media Server Version: 7.7.3 - 1375965195 @ Mon Aug 12 11:14:33 CUT 2013
BBC iPlayer v1.2.12
Operating system: Windows 7 - EN - cp1252
Platform Architecture: 8664
Perl Version: 5.14.1 - MSWin32-x86-multi-thread
Database Version: DBD::SQLite 1.34_01 (sqlite 3.7.7.1)

Martin