I had a channel with my sister, which was set up with our two umbrels. My node went offline, and I am trying to recover my off-chain funds. While my node was offline, my sister closed the channel. Neither of us has gotten our bitcoin back, and it is well over two weeks since the transaction was mined. She accessed RTL on her node and found the transaction. I don’t have any idea why, but the associated time lock on the transaction is 553,000,797 when I checked it on mempool. I think this is why we haven’t seen these funds returned. We definitely did not set a time lock at any point. Why did this happen, and what can I do about it?