Had the identical problem but for far longer than just the last update. After trying every brake option, these two worked the best for me.
LEFT BRAKE - Joystick L-Axis X+
RIGHT BRAKE - Joystick L-Axis Y+
I’m using CH rudder pedals so the input values that appear in the Controls view when you press your toe brakes may be different. The easiest and quickest way to test this is to accelerate as if you’re taking off, but then pull the throttle back after a few seconds and apply the brakes until you stop. If you don’t stop, try another brake option. If you can stop release your hold on the toe brakes, and accelerate again. If you DIDN’T have to cycle the parking brake to start moving, you’ve found your solution.
For me now, a bit of additional throttle is required to begin moving to overcome inertia, followed by a quick reduction to taxi at slow speed - just as it ought to be.