can't send a Harpsichord to another character on the same account

[Crawlerbasher]

I checked on the list and the Harpsichord is on the list, but I can't send it to my other character on the same account.

The item is just greyed out.

[VoiceMemo]

Those items are locked to the char you redeem them to, and it is on the list

https://forum.square-enix.com/ffxi/threads/14591-Undeliverable-Same-Account-Ex-Items