On Thursday 27th October, Form3 observed performance degradation on the Bacs Simulator.
Investigation identified that a configuration change made had caused an unexpected impact on the Bacs Simulator, which resulted in inbound test transactions not being processed as usual.
Upon identifying the root cause, a fix was implemented at 16:26 BST. A period of monitoring then followed which confirmed there was no further impact to the Bacs Simulator and transactions were being processed as expected.