FUJ.1.001 firmware; HSS becomes unavailable on Fuji X-T2
New Cactus V6 II owner here. Updated firmware to FUJ.1.001 and found HSS worked beautifully. Turned on camera the next day and HSS was broken. In TX settings, Functions->Sync Mode. Value displayed is "HSS OFF" and cannot be changed.
I did Factory Reset and even re-flash firmware on both TX and RX but problem persists.
X-T2 version is 2.00. TTL works beautifully. HSS worked briefly. I've even tried swapping TX/RX modules. I'm firing a Canon 580EX.