Right so Im frustrated beyond belief. The room gravity is set to 8.91, an objects mass is 1500, when the game runs it skyrockets towards the sky. The object has no scripts attached other then rigidbody. So I tried room gravity -8.91 and that just made it skyrocket faster. Tried negative weight and even worse. Somethings wrong, bad. And its horribly annoying.
I’ve never seen this before so I’m just going to take some shots in the dark.
Do you have two overlapping colliders attached to the same object. Maybe some weird behavior would cause them to try to push the other out and UP.
You definitely want the gravity to be negative.
Do you have a Constant Force component attached to the object? That could do it.
It could be a bug. Have you tried re-installing/restarting Unity.
If all else fails I would submit a bug report and at least they can either tell you it is a bug or they will see your project and tell you what you did wrong. Sorry I can’t give any definitive answers.