Is there a way to make baritone only send the errors once?
If not, how can I disable them?

Final checklist

• I know how to properly use check boxes
• I have not used any OwO's or UwU's in this issue.

Do you know how many red nether bricks are in render distance?
Also iirc if you run #mine again the blacklist is cleared and every unreachable or will be announced another time.

Well... every error is shown exactly once. It's one for every ore Baritone blacklists.
Also I don't think there's a way to silence it (apart from disaping blacklistClosestOnFailure because that makes #mine cancel on the first one).

@ZacSharp According to my file editor (Going through the log file), it sent that error 400 times.