V-memory variable update problem

[vovaself]

Hi
There is a strange problem

I have Arduino sketch working with stepper motors.
Connection to Virtuino - Bluetooth

If I disable logic of steppers (skip it) Virtuino screen works properly.
If I add steppers logic Virtuino screen works partually:
I can press button to change V-memory variable and the program(sketch) reacts properly.
But the same variable is not updated on the screen.
Maybe somebody have an idea ?

Thanks