To my knowledge 6 sectors were cancelled into and out of Dublin today due crew shortages, unfortunately there isn't any quick fix coming. Shame to have aircraft, passengers ready to fly but no crew to operate.
Indeed and passengers from 4 were all transferred and Titan are planned to operate an extra out to ALC tomorrow as their is no A321 free to do it.
New crew started this week and more due to start 29 July
AFAIK, Saturday only seems to be the problem.