(Bloomberg) — ASX Ltd. said it’s investigating a problem with its settlement platform that caused a delay for some customers on Friday afternoon.

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The service will remain open beyond its normal closing time, according to an ASX statement. New trades are being received and the clearing process is operating as normal, it said, as the firm continues to investigate the issue delaying batch settlement on its Clearing House Electronic Subregister System, known as Chess.

The Chess system has been under scrutiny this year amid concerns over the progress and delays of a technology upgrade.

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