I’ve followed the documentation on state transfer very closely and set up root and child contracts on Goerli and Mumbai. The third transaction includes a call to sendMessageToChild which emits a stateSynced event.
However, the child contract on Mumbai never receives the message. Am I missing a step? How long should it take to get a Goerli → Mumbai message through using FxBaseRootTunnel and FxBaseChildTunnel?