when the trolley hits the activating rails, the game character is thrown out of it, while the trolley itself begins to swing from side to side, unfortunately I cannot attach a screen recording, since the size of the attachment exceeds the maximum allowable
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Comments 2
See MC-79835. You're confusing activator rails and powered rails.
works as intended. You've probably wanted to use powered rails to boost the speed, but used activator rails which activate tnt carts and throw entities out of the regular carts.