I will try that. Maybe that is the problem. 

I think you were right. I kept it open for a while and the transaction went through. Maybe the answer is to wait longer than I have been. I always wait a little while, but maybe I was too impatient yesterday. 

Could be bad LN graph sync. Open more often that node and let it sync for a while.

DarthCoin

SN Wallet Transfer Issue? 

siggy47

Yes. Good advice. Thanks. It turns out the problem was with Mutiny, though I can't figure out why. I have a channel with plenty of inbound liquidity. I have been doing small transfers routinely for about a month without problems. I checked to make sure the channel was online. I easily made the transfer to my node, so it definitely was not SN. FYI, I do have a channel with SN through my node. 