As stated, Guard when used in conjunction with any other shout or F2 command is bugged.
Using any pet based skill (heel, attack, shout such as Sic Em, pet ability) while guard is active will cancel the “guard” status of the pet and force it to do nothing. The pet will take no action but will consume the CD of the used skill (If Sic Em is used, the pet will sit idle and will not attack a target, it will just sit there and do nothing until another command is used).
The only remedy I’ve found to this was to spam Heel or for the pet to attack the target 3 or more times to clear the guard status off the pet before issuing a command like Sic Em to the pet.
The failure of the pet to respond once put under “guard” is terminal to Nature’s Voice based builds, as “guard” is the only shout with a CD short enough to really take advantage of this new grandmaster trait.
Forcibly putting the pet in guard every 12 seconds causes the pet to become stuck in guard mode and forces the ranger to clear guard status manually using spam or risk having a skill like Sic Em or a F2 command become consumed without the pet actually initiating the attack.
This leads to very clunky ranger play. The pet should transition smoothly from Guard and into Sic Em, Protect Me, Seek and Rescue, or F2s
Using ANY shout or F2 skill while the pet is guarding will cancel guard, initiate the CD of the used skill, and force the pet to just sit there lobotomized without actually taking any action.
Hopefully this will be fixed, because it breaks Nature’s Voice builds.