Multi-vendor buying with points question

Hi, from what I can see, if a user pays with points and the order would normally give 5 points back they don't get it and only get them if they pay with cash or cash and points. Normally when I look at the invoice, it shows the amount and how many points the should get but when the pay with points only it doesn't show anything.

Can someone with a multi version or cs-cart let me know if this is normal and if it can be triggered on and off?