Australian families and friends of Bali bombing victims are outraged at a decision to show footage of the Sari Club bombing and the man who built the explosive devices at last night's memorial service at Kuta.
Hundreds of people gathered at the site of the blasts to mark the 20th anniversary of the terrorist attacks.
On October 12, 2002 three bombs were detonated in Bali, two in busy nightspots — the Sari Club and Paddy's Bar — and one in front of the US consulate.
The explosions killed 202 people, 88 of whom were Australian, and wounded hundreds more.
At the service in Kuta, many people said they were shocked at a series of videos prepared by Indonesian National Police and the Indonesian government.
At 11:05 pm — the exact time the bombs went off — the crowd was shown graphic footage on big screens of the Sari Club ablaze, with victims screaming inside.
"They put up a video of the bombings, all the carnage, which just ripped our hearts apart, seeing it all again," said Jeff Marshall, who lost his father in the attack on the Sari Club.
Mr Marshall said he was also distressed that he was not allowed into the site to light candles, something loved ones have previously been allowed to do.
"We're not allowed to go into the [former] Sari Club [site] and light candles like we have before to pay our respects," he said.
"We can't even get up to the memorial now. It's all about them."
The Australian government has said it wasn't involved in organising the event, and noted DFAT was standing by to offer assistance to any Australians who may need it.
"I think what it shows is that, even though we are two decades on from these events, for so many people, the wounds, the scars, are still there and this is an experience [that] remains very raw," Defence Minister Richard Marles said.
"My thoughts are very much with those people who were there. We are wanting to make sure we can address their concerns as best as we can. But we are very disappointed in what has played out."
Senator Murray Watt added the government intended to raise its concerns about the "grossly insensitive" videos with the Indonesian authorities.
Bombmaker appears in video at memorial
Another video shown at the memorial featured extensive footage of Umar Patek, the man who built the explosive devices used in the attacks.
The video appeared to show Patek raising the Indonesian flag.
The footage came as a shock to Australian Jan Laczynski, who lost five friends in the blasts.
"The focus should be on 88 Australians, 202 [people]," he said.
"It should not be focused on these monsters, these terrorists."
Patek is awaiting release on parole from jail after serving just half of a 20 year sentence.
Australia's Prime Minister Anthony Albanese slammed the decision in August to reduce Patek's sentence after he served only 10 years behind bars.
News of his imminent release was distressing for Bali bombing survivors and families as they prepared to mark 20 years since the attacks that changed their lives.
"This is not an appropriate spot for Umar Patek," said Mr Laczynski.
"He's a terrorist, he should still be in jail.
"He should not be shown here on the 20th anniversary."
It was unclear whose decision it was to play the videos at what was meant to be a memorial service.
There was a sizeable presence of Indonesian police and military officers, who were among the only people allowed into the memorial site to lay wreaths.
Indonesian authorities have not commented on the reaction of Australians to the videos played at the memorial.