Wrong notification E-Mail after changing invoice status to paid?

Hello,

I’m using GeodDirectory and Invoicing and so far everything works fine. But today I’ve noticed something, which might be a bug:

The only payment method I want to offer is prepayment transfer. Therefore I have to set an invoice status to „paid“ manually, which works without any flaws. But if I click the „Send Invoice“ icon (see attachment 1), the wrong notification mail gets sent to the customer.

Just to clarify: the invoice preview which comes along with the E-Mail ist correct, status reads „paid“ (see attachment 2). It is just the notification text. It should be from the „paid invoice“ mail, but on my system its the „customer invoice“ text (attachment)

Can you please check this issue out?

Regards,
Martin