switching RTÉ

If you woke up to Lyric on 2FMs slot & RnaG on Radio 1's slot on Astra2D, and RnaG & Lyric silent, the audio PIDs seem to have shifted....
why and when to be confirmed,

 
       OLD A-PID NEW
2fm    2323 -> 2321
lyric  2325 -> 2323 
RnaG   2324 -> 2322
radio1 2322 -> 2320