When using controller post server merge, run/walk toggle issues

[Duuude007]

ISP: Cable One
Type of Internet Connection: CATV
Internet Connection Speed: 5Mbps
Date & Time: Mar. 27, 2012 13:00 EST
Frequency: Persistent since server merge
Character Name: Duuude Bismarck
Race: Lallafel Dunesfolk
World: Durandal
Class/Level: All/50
Area and Coordinates: Any
Party or Solo: Solo & Party
NPC Name: None
Monster Name: None
In-Game Time: Any
Steps: When using a gamepad, If I press up/down/left/right, I run at full speed.
If I try to run diagonally, however, I have reduced speed, which is also displayed as reduced in the UI. This occurs both in cities and in the most sparsely populated places I went, on and off a mount, even with the ARC run speed ability active or not.

Here is a diagram to better explain:

[Xophious]

Greetings Duuude007!

Thank you for filling out all the details! Since we have all the information we need, we will be forwarding your concern to be looked into. If there are any updates throughout the investigation, they may be posted within the forums.