[iOS 18 DB3] Messages sending as both RCS and iMessage, then failing and resending as SMS.

Since I have updated to the beta, a few friends that have android devices have complained that my phone sends the same messages multiple times. It would appear that after it sends as an RCS message it then tries to send as an iMessage. It will then fail and send as an SMS message. I don’t know how to correct the behavior or to report the bug.