Hello. .
When Minecart try to turn left or right on the curved rail,
It doesn’t turn left or right but get turn back like bump a solid block.
Hava a nice day. 🙂
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Thank you for your report!
We're actually already tracking this issue at MC-144605, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.

o, sorry, I didn't know that is already issued.
Thanks anyway. You are very kind. 🙂
I confirm this issue - whenever a minecart reaches a curved rail, it bounces back or sometimes goes completely out of place (had minecarts on an upper floor of a building end up on the floor below after being bounced back at a curved rail, for example).