fix

staker/staker.go

@@ -937,7 +937,7 @@ func (s *Staker) advanceStake(ctx context.Context, info *OurStakerInfo, effectiv
 				s.bringActiveUntilNode = info.LatestStakedNode + 1
 			}
 			info.CanProgress = false
-			return nil
+			return s.tryFastConfirmation(ctx, action.assertion.AfterState.GlobalState.BlockHash, action.assertion.AfterState.GlobalState.SendRoot)
 		}
 
 		// Details are already logged with more details in generateNodeAction
@@ -992,7 +992,7 @@ func (s *Staker) advanceStake(ctx context.Context, info *OurStakerInfo, effectiv
 					hash: action.hash,
 				}
 			}
-			return nil
+			return s.tryFastConfirmationNodeNumber(ctx, action.number)
 		}
 		log.Info("staking on existing node", "node", action.number)
 		// We'll return early if we already havea stake

system_tests/staker_test.go

@@ -828,7 +828,7 @@ func TestFastConfirmationWithSafe(t *testing.T) {
 	}
 	valWalletB, err := validatorwallet.NewEOA(dpB, l2nodeB.DeployInfo.Rollup, l2nodeB.L1Reader.Client(), func() uint64 { return 0 })
 	Require(t, err)
-	valConfig.Strategy = "stakelatest"
+	valConfig.Strategy = "watchtower"
 	statelessB, err := staker.NewStatelessBlockValidator(
 		l2nodeB.InboxReader,
 		l2nodeB.InboxTracker,