What the symptom can mean
Programme estimates may change with load behaviour and extra stages. Persistent stopping, repeated redistribution or a warning deserves a different assessment from an estimate that changes but completes normally.
Compare like with like
Use the same named programme when describing the change. Include temperature, spin and extra-rinse options rather than comparing a quick wash with a different full programme. Say whether the machine eventually completed or stayed at one stage.
Keep interruptions visible
Note a warning, repeated redistribution, pause or known water-supply interruption from the occasion. A longer estimate by itself does not establish that a particular sensor or control has failed.