mojira.dev
BDS-19581

Minecart hitting invisible/imaginary wall

A simple U-shaped hopper-minecart route that worked before the 1.21.20 update no longer works because the hopper-minecart continues to run into what I can best describe is an invisible/imaginary wall and simply stops. It does not bounce off of the invisible/imaginary wall. Attempts to create spacing around and above the hopper-minecart did not solve the problem. That car behaves almost like it ran into a cobweb or an unpowered rail, but there is no cobweb and all the powered rails are powered. The track around the affected area was removed and replaced, but this did not solve the issue.

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Logged into the Realms map today and the issue appears to have self-resolved. Must have been due to the challenges associated with the 1.21.20 rollout yesterday.

Closing as per latest comment.

I can confirm 1.21.20 BDS is affected with this issue. Whether the realms patching needs to go to BDS or an update hasn't rolled to [Latest] yet, I'm not certain. Here's a video of the minecart failing. https://youtu.be/wGc-I5fQV18 Prior to the realms issues, the minecart was only sticking at one point mid-line, not near the hopper dropper off. The 2nd fail is new within the past 24 hours with no changes to server. 

**This is a private BDS, not Realms.

This is still an issue on Realms at least. My minecart with hoppers will randomly stop and refuse to be pushed as though they have collided with an invisible wall, but only from one direction. If they come at the area from a different direction, it will proceed through the problem area as normal.

I have a screenshot of one of the times it happened. Here I have a powered rail on a hopper going into a block. It doesn't matter if it is powered the whole time or not. The minecarts will stop right on the edge of the powered rails and then will never go back on them by themselves unless I leave the realm for a few minutes and then come back. Once they work properly, they continue to do so until I leave the realm and come back again. Presumably you could recreate this by doing that over and over until you see the issue happen.

Picking up the minecarts, unloading and reloading the chunks, and replacing the rails does not fix it.

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