The bug
Likely due to the fix of MC-253227, entities and other non-player message sources appear in the Social Interactions menu, allowing chat reports to be created for them. Ultimately, however, sending a chat report for one of these sources fails, because they are not players.
As in previous versions, only players would be expected to appear on the Social Interactions menu.
How to reproduce
Join a world, and open it to LAN
Spawn a creeper
Run the following command:
/execute as @e[type=creeper,limit=1] run say 1.19 Release Candidate 1!
Open the Social Interactions menu
❌ The creeper is listed as an offline player
I can confirm this behavior.
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