Does the payment allow for lightning payments? Usually there’s a way to toggle this from an onchain address to a lightning invoice if you are paying a merchant. If you are trying to return funds to your own onchain wallet, I’d close your channel with mutiny.
Discussion
No there is no lighting payment option. I have used lightning for a while with a few different wallets and have never had this issue. I’ll contact the mutiny guys and see what they say. Thanks!
You need to close the channel with mutiny to settle it on chain. Then you can make payment onchain when it settles