Plebeian Market uses a different listing spec (NIP-15) than Amethyst, Coracle, and nostr:nprofile1qqs2xugc5jyguqkj36rk0syv4tmnkjdtmtperttl7x9rqjy3ustdcvcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsq3camnwvaz7tmjv4kxz7fwd46hg6tw09mkzmrvv46zucm0d5yx7efd do (NIP-99), so listings won't be carried over to the other clients from there.