Ascension rules bug, intermittent

Time: 16:00 EST
Frequency: Intermittent
World name: Coeurl
Character name: Temperance Frostshard
NPC name: Indolent Imperial
Monster name: N/A
Class/Level: Whm (50)
Party or solo: Solo
In-game time: 13:00
Area and coordinates: Mor Dhona (11,17)
Steps:
1. Playing Triple Triad match against NPC, Indolent Imperial, using ascension rule set
2. Player-laid card with higher value (base value + ascended value) fails to capture opponent's card.

Summary:
Have witnessed during six separate matches against this opponent where in some instances I was unable to capture opponent cards even though my card's value was higher. This has been primarily when playing primal set cards against other primal set cards (i.e. Ifrit defending and Garuda attacking from the bottom). This issue occurs intermittently. The deck I am using that has been creating this bug is: (Ifrit, Titan, Garuda, Good King Moggle Mog XIII, and Bahamut).

The values of ascended cards can't exceed 10. A 7+5 is still only a ten, and can therefore not capture a 5+5.