Yes, you are correct. I now see the ‘settled balance’ in my transaction history. 

When I initially looked up the closing transaction ID on-chain I saw the Locktime and thought it was being held up.

This seems that you don't have any pending channels.
Arf you sure you still didn't get the funds?
Maybe you are looking to the other side peer utxo.
If the peer was the initiator of force close you could receive the funds (if were for you) but the peer must wait.

DarthCoin

What would we do without you @DarthCoin?! Thank you!

Lncli pendingchannels gives me the following...

{
    "total_limbo_balance": "0",
    "pending_open_channels": [
    ],
    "pending_closing_channels": [
    ],
    "pending_force_closing_channels": [
    ],
    "waiting_close_channels": [
    ]
}

I assume this means all funds have been released. Though I'm still not sure what a 'Locktime' value of 550,999,926 translates to.

SatoshiNakanodo

bitcoin

Question: How do I convert a bitcoin Locktime?  🕙 🔓

Lncli pendingchannels

And you will see the real block when will be released. Usually not more than 144 blocks