The bug
When a minecart goes around a corner with a block in the corner it slows down. How much it slows down depends on what block it is. Hoppers slow down the minecart by a lot, while fences don't slow it down as much.
Affected blocks
Here is a (selection of) affected blocks. The amount of slowdown does appear to be somewhat related to the hitbox, but there are some inconsistencies.
Large Slowdown | Medium Slowdown | Small Slowdown | No Slowdown |
|---|---|---|---|
Hopper | Lectern | End rod | Air |
Cauldron | Sea pickles (3) | Fence | Full blocks |
Anvil | Grindstone | Closed fence gate | Slabs |
Composter |
| Chest | Opened fence gate |
| Wall | Candles (1 or 2) | |
Candles (3 or 4) | Some blockstates of stairs | ||
Sea pickles (1, 2, or 4) | |||
Some blockstates of stairs |
Videos
[media]Linked issues
is duplicated by 4
relates to 1
Attachments
Comments 8
Relates to MC-165330
Confirmed for 1.20.2. The minecart will stop instantly in a curve even with full speed and a player inside (see the picture). Also happens with the azalea and bell block.
Transferring ownership to @unknown due to the current reporter being inactive and not updating the issue for a long time.
The bug only works with some blocks. such as: hoppers, lecterns, end rods, and more. The bug still works in 20w48a
here is a video which proves this: https://youtu.be/rPKbZ9C6h7Q