Well, this is working fine for me.
Just installed freshly this great 13.2 version, copied the crypttab and the directory with keyfile from my old install over. After a reboot everything is fine.
Did you try to open the encrypted partitions with the specified files from the crypttab to check for the integrity of the key files?
Did you recheck the UUIDs or Labels from the crypttab?
Did you try to assign fresh new keyfiles to test?