Multiplayer clients riding minecarts on long tracks periodically reverse course, at same locations.
My steps to reproduce (note: I have a track over 7000 squares long, which is the only one I've tested it on. You might not require such extreme length to reproduce the bug, but I can't guarantee that. I'm happy to provide you with my world (currently 500mb).
1. Build track with twists, turns, hills, etc. Convoluted course as issue does not occur on straights.
2. Must connect to multiplayer mode on another device. (Currently hosted on an iPad retina, iOS 8.1.2. When local on server, does not reproduce. Must connect to another phone, pad or tablet server.
3. Connect with client, start at beginning of track and ride. (Does not repro if you start/restart near the reverse point.
4. Observe minecart reverse at the same point over and over as long as minecart start is from same location. Minecart also gets "stuck" in a reverse jiggle loop.
5. If you immediately destroy minecart, minecart is found in location it WOULD HAVE BEEN if it had not reversed.
6. Watch client's minecart from server. Minecart will not appear to reverse, even though client user reverses.
7. Expected behaivor cart should not reverse course.
http://youtu.be/H__QOrt6MTQ or
https://www.youtube.com/watch?v=H__QOrt6MTQ&feature=youtu.be
Linked issues
is duplicated by 1
Comments 10
Did the Minecart drop after getting the direction reverted?
Like, waiting a few seconds after it got reverted then try to break it.
Comment back if you got the Minecart item back or not.
The minecart didn't drop on its own after reversing direction, however once I destroyed it I was able to get it, but not in the location where I destroyed it. The dropped minecart is located approximately where the minecart would have been if it hadn't reversed direction. See the video link above for where the destroyed minecart actually drops. I could probably send it to you as a video file but it's 200+MB.
Also, if I'm remembering correctly, if the HOST of the game is watching the guest in the minecart drive past, the minecart does not appear to reverse direction. That is, the guest thinks it has reversed, but the host thinks it has not. That would explain why the destroyed minecart shows up where it does.
Ok, thanks!
This seems like a server-client desync. issue.
We will try to work on this later, thanks for the report!
I'm actually getting this in single player on a Samsung Galaxy Tab 2 and Galaxy 2 phone running 0.11.1. It tends to result in picking up carts up and down the track. My inventory fills up with minecarts.
Also my track is a long straight one. I find dropped carts and carts on the tracks, hitting a cart reverses mine. Ive brocken the cart and gone on foot to break the one i hit and on at least one occasion suddenly found myself riding a cart in the opposite direction.
Cleaning up old issues. If this bug still occurs in latest version, please leave a comment so we can reopen.
Link to video of bug:
http://youtu.be/H__QOrt6MTQ or
https://www.youtube.com/watch?v=H__QOrt6MTQ&feature=youtu.be