I noticed that actually, it seems that I'm not able to receive group messages (messages that are not sent just to me). Two people sent some to me last week and I did not receive any. I also struggled to receive some SMS for 2auth factor with an unique service, but maybe because they've issues on their side, I don't know.
Also, I noticed that there was a new build on October 3rd. Are there some changes compared to the October 2nd build ?
AOSP source issue, present on almost all ROMs I know right now.