Trial postponed because juror’s hearing aid broke

Just turned on Channel 4 News which seemed to be covering trials, the length of them and if juries can understand their complex nature. As soon as I had turned the television on, it was covering the fact that a trial had to be postponed for a day because a member of the jury’s hearing aid broke. Does anyone know any further details about this?

Whilst hearing aids are acceptable over here (without communication support), having communication support is not. It becomes the 13th person issue, within the deliberation room. It seems rather bizarre that a juror functioning with a hearing aid alone (after all, it does not replace natural hearing) is safer or indeed more legal than one who is relying on communication via a third party.