Time: Always available
Frequency: Always available
World name: Balmung
Character name: Any character (Pentiki Mahougami reporting)
NPC name: N/A
Monster name: N/A
Class/Level: Lancer/Dragoon 38+
Party or solo: Party
In-game time: Always available
Area and coordinates: Any area
Steps:

1. Use Impulse Drive from any position except rear
2. Combo action is not activated for Disembowel.

1. Use Impulse Drive from rear
2. Combo action is activated
3. No indicator appears telling you that Impulse Drive was used successfully from the rear position and that Disembowel's bonus is available.

***Not a hardware or connection related issue***

This combo setup needs to either work from any side (as nowhere on the skills does it say a specific position is necessary for the combo action on Disembowel to be activated), or there needs to be a flying text "stance buff" similar to Opo-Opo form on monk which is granted by using Impulse Drive from the rear. If the latter approach is the ideal approach, the text on Disembowel needs to be updated to reflect the positional or stance requirement.