QLD Solicitor's Refusal to Recognise all Executors

[Tricky]

My husband's father's estate has four executors and the estate solicitor is refusing to communicate with all four executors - Does each executor have the right to the same information and correspondence that the estate solicitor is only giving one or two executors ? My husband has asked that he be kept up to date by the estate solicitor as there has been a complete breakdown of communications between the executors but the estate solicitor refuses and will only communicate with the same 2 executors - all costs are being paid for out of the estate, not by the chosen 2 executors - the 4 executors are also the 4 beneficiaries of the estate