Weird repetitive suggestion text when using ^ in coords where a coord or player name is allowed (/teleport)
Related issues
duplicates
Attachments
Comments

[media][media][media]

This has been fixed in 1.13.1.
Actually, fixed in 1.13. Brigadier no longer produce those error messages when using ^.
Repetitive error messages still appear when typing anything invalid, however this is essentially caused by MC-124137
[media]