Gift Vouchers Failing when customer spends less than Voucher Total

I am using Version 3.0.3.2 - Default Store Theme. Some extensions installed (Header, Gallery, Dashboard type things)
I use categories for stores - one SSL then. I have password on category extension.

Customer wants voucher or coupon for $125 for each employee to apply to clothing order. If the customer spends more than $125 the voucher applies as expected, works fine. If the customer spends LESS than the voucher, the dollar amount is subtracted, the customer confirms the order and gets a confirmation that says order was successful BUT it shows up as MISSING order on the back end. Customer thinks they have placed successful order and I think it is an abandoned cart.
I am sure the voucher is set up correctly as it works when they spend MORE than $125.00
Anyone have any ideas??? I looked at an extension for advanced coupons, tested on their site and it does not work on their demo site either.....

Thank You in advance for any input on this!

URL / Screenshots missing. Forum rules.

This is not really a bug, but it does cause a few problems.
This will prevent you missing them.

viewtopic.php?f=201&t=215168