Expense journal Posting Access in Project Accounting

Hi All

To one of my accountant, posting button is not showing in the project accounting module. In rest of the Journals like General journal, Payment etc it is showing. I checked with the Privileges “Ledgerjournaltable7maintain” and assign to the role, still it is not working. Can anyone help me on this, how can i give the access to the accountant.

Default all the project roles i already assigned.

thanks in advance

Any suggestion experts