*update* well I'm way past 5 now and no payout so not sure...
I am running into the same problem: threshold reached, payout is showing in the Payouts tab but TXID shows
Unpaid.
And obviously I did not get anything on my wallet.
This is my first payout so I dont really know what to expect.
They attempted to pay out but I had the address formatted wrong. Presumably if it had been formatted correctly I would have my grin now. As I understand it they are actually processing payments by hand. So they will just try to send your grin once per day, when ever you come up in the queue, as long as you are above the threshold.
Will report back with a further update once I actually have my hands on my grin.