Thanks for your input.

For me, every time I've used Coinbase and made a BTC withdrawal it has immediately appeared in my wallet.  This time about 3 hours. Admittedly, I don't use it that often. Just when I want to make a transaction. That way I replenish what I used.

Another thought, I made this transfer late at night. Perhaps they don't keep as much on hand during that time.  Who knows?