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.
confirmed for 1.15 and 1.15.1
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.