Hi @Helpquick
These aren’t bugs - this is the way the client statements have been designed. But I will pass your feedback onto the development team.
With regards to the statement for a specific date range, the unpaid invoices will always show, regardless of the date created but any payments and paid invoices will only be for the date range you have selected.
There is a feature request to remove the payments received which you may want to add your vote to: Client Statement Payments received Customisation