I currently play Minecraft on Samsung J5 Prime, and there is a minecart issue found in one of my worlds. When I ride a minecart that goes up a slope, or in other words, when going up, it sinks to the tracks. I tried testing the carts to climb up in other worlds, somehow it didn't really have the issue, but it happened in the world I am playing on. I ride the minecart that goes up and the minecart glitches, and it sinks to the tracks.

"Steps to reproduce"

-In a normal world or a flat world, make a long track, and then build the tracks going upwards, and then build a long viaduct. Test the minecart by riding on it.

-Note that the cart sinks to the tracks, as spotted in the world I always play in. 

The picture shown shows the aftermath of the minecart on the viaduct when it climbs a slope, and that is the time when I tested the cart.