Hey - Just double checked this in game, it's definitely casting Scorch when moving for me. Is it not for you? Any specific times you're noticing it not casting Scorch on the move?
Here's a piece of the log :
>>> Attacking a Burning Berserker on Timeless Isle
>>> Standing still, auto-casting
[21:00:15.735 D] [Portal] Automatically enabling burst mode!
[21:00:16.708 N] [Portal] [HP: 100] [Mana: 81.8] [Heating Up: False] [Pyro: True] [Casting: Pyroblast] [On: Burning Berserker @ 67.2% - 2.3m]
[21:00:18.115 N] [Portal] [HP: 100] [Mana: 83.3] [Heating Up: True] [Pyro: False] [Casting: Fireball] [On: Burning Berserker @ 58.9% - 2.0m]
[21:00:19.509 N] [Portal] [HP: 100] [Mana: 85.3] [Heating Up: True] [Pyro: False] [Casting: Living Bomb] [On: Burning Berserker @ 55.6% - 1.9m]
[21:00:19.541 N] [Portal] [HP: 100] [Mana: 85.3] [Heating Up: True] [Pyro: False] [Casting: Fireball] [On: Burning Berserker @ 55.6% - 1.9m]
[21:00:20.116 N] [Portal] [HP: 100] [Mana: 85.3] [Heating Up: True] [Pyro: False] [Casting: Fireball] [On: Burning Berserker @ 55.1% - 1.9m]
[21:00:21.689 N] [Portal] [HP: 100] [Mana: 83.6] [Heating Up: False] [Pyro: True] [Casting: Living Bomb] [On: Burning Berserker @ 45.2% - 1.6m]
[21:00:21.722 N] [Portal] [HP: 100] [Mana: 83.6] [Heating Up: False] [Pyro: True] [Casting: Pyroblast] [On: Burning Berserker @ 45.2% - 1.6m]
[21:00:21.754 N] [Portal] [HP: 100] [Mana: 83.6] [Heating Up: False] [Pyro: True] [Casting: Pyroblast] [On: Burning Berserker @ 42.4% - 1.5m]
[21:00:22.130 N] [Portal] [HP: 100] [Mana: 83.6] [Heating Up: False] [Pyro: True] [Casting: Pyroblast] [On: Burning Berserker @ 40.9% - 1.4m]
>>> Starting to run (evasive action since the Berserker uses his fire-buff
>>> Portal does nothing ...
[21:00:23.613 D] [Portal ~ Debug] Suspend Keys Activated
[21:00:23.614 N] [Portal] [HP: 100] [Mana: 81.9] [Heating Up: True] [Pyro: False] [Movement: Suspending - User in Control]
[21:00:23.614 D] [Portal ~ Debug] SuspendMovement: Setting No Player Movement
[21:00:23.614 D] [Portal ~ Debug] SuspendMovement: Setting No Stuck Handling
[21:00:23.647 D] [Portal ~ Debug] Suspend Keys Activated
[21:00:23.647 D] [Portal ~ Debug] Stopping Movement!
If it's working for you, then I must be doing something wrong (settings perhaps?)
(I'm using Tyrel in framelock mode)