I have been experiencing a major bug in the inviting system that has been causing it to spam invite may players when trying to invite a lot of players at once. I have found this out because I have had multiple people DM me on Xbox Live saying to stop spam inviting them.

Steps to Reproduce

1. Own a Minecraft Realm for Bedrock 
2. Have dozens of friends that aren't currently invited to the realm
3. Press the edit button besides your Realm and press "Manage Realm"
4. Go to the "Members" tab and scroll to the "Friends" section
5. Start clicking the "Invite" button once on different players really fast

Observed Results (reported by invitees)
Multiple invitations are received.

Expected Result
Only a single invitation is sent / received by each friend.