"As explained so many times in the forum...." I am not supposed to be a beta tester or spend my life on this forum to find out it actually is broken. Before the update, I did configure the refuel for my 737 Max, after the update, it has changed.
Fact you are now saying you edited the airplane, seems to indicate you KNOW in order to see the crewed Fuel truck, you must edit the refueling point under the wing to be higher than 3.40 meters from ground, and it has always been like this since the vehicle came out.
Nothing has changed, nothing is "broken" and, of course, it works perfectly fine here, after being sure the refueling point under the wing is higher than 3.40 meters from ground.
This obviously should take into account the airplane weight so, if the airplane was very light when you edited it, and you set it the refueling point to be *barely* above 3.40 meters from ground, it's very likely with an heavier load, the actual position in use might still be *below* that limit, resulting in a non-crewed truck to come.
Of course, before replying, I also tried, because even if I'm SURE nothing is "broken", you never know and, of course, IT WORKS, see the attached screenshot I just made NOW.