Humanoid mass treated differently compared to other masses

Bug Reports Engine Bugs
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#1

The video explaining the issue shows a platform, a humanoid character and a part.
Both the character’s and the part’s masses have been increased by a lot.

It shows how the platform sinks and then restores itself when one block is placed on it.
When a second block is added, the platform is no longer able to stay afloat.
Strangely enough there’s also moments where, when the second block is taken off, it somehow can’t recover from the first, despite it being able to other times.

Now for the main issue:
Two blocks have it fall flat completely, yet it holds up two Humanoid characters perfectly fine. The same goes for 3, 4, 5, and so forth.
Only after a copious amount does it go down.
When you replace one of these higher mass characters with a block, then suddenly does the platform sink.

It’s somehow able to hold a FAR greater mass of Humanoid characters than a mass of any other kind.
Take away the Humanoid instance and suddenly they turn into normal ‘dead weight’, which is cearly treated differently.

I suspect there’s a different force being exerted against the Humanoid characters to keep the platform afloat, which would explain the discrepancy between those and other masses.
This leads to other complications too when these Humanoids are ‘treated differently’ from inanimate objects, as different forces would be applied.

Expected behavior

Expected is for these masses to be equal, as it makes no sense for one to be different. If an elevator sees a 1,000 pound weight limit it can hold, it’d be rather unrealistic for it to not fall down when there’s 5,000 pounds of Humanoids standing on it with room for more to join. As soon as a part were to drop on top however, it’d crash down immediately :thinking:
So expected is for them to be treated equal, where Humanoid characters too drop the platform when it exceeds the limit.

#2

This is a known inconsistency with the Humanoid movement controller and the rest of the physics engine. The humanoid is treated differently in a variety of scenarios.

We addressed this by building a new character movement controller, one that’s built off of the existing physics code and provides more consistent and stable behavior. Find more about it here

#3

It appears to me that these are for custom Characters, without the need of a Humanoid instance.

For existing characters or even the Player itself, is there a way to (temporarily) disable the current Humanoid behaviour whilst they are let’s say on a special platform or see forces added to them that resist the Player from moving at their regular speed, whilst not being overly excessive solely because they’re applied to a standard Humanoid?
/ A way for them to enter a state where any additionally exerted forces are negated, whilst they keep their Humanoid instance?

#4

Yes, you can use Humanoid:ChangeState() to put them into the Physics state, which disables all forces on the character. There is also Humanoid.EnableStateMachine which will fully disable the Humanoid’s physics and state machine. (This is what is used to swap to the new physics controller linked above. There is a script in the post that you can use to get started.)

Otherwise, there is no way to customize the forces on the standard Humanoid.