Expected Behaviour
A clear and concise description of what you expected to happen.
Train proceeds along planned route as in dashboard

Actual Behaviour
A clear and concise description of what actually happened.
Train repeatedly opens door then disappears

Reproduction Steps
Steps to reproduce the behaviour:
I am unsure about the reproduction of the behavior

Crash Report
Attach a crash report to the issue.
No crash report, just in-game issue

Environment

• Superflat world (if applicable)

• Minecraft Version:

• 1.16.5

• Installed Mods:

• ONLY fabric api 0.29.3 and current mod

Additional Information
Anything else you want to add?
Normally doors open 2~3 times before disappearing.

Hello, do you have tracks connecting the platforms on your route? The trains disappear because they are unable to find a valid path in the world. Also, are the stations on your route in the correct order?

The tracks are connected and the stations are in correct order. I have checked the rails prior to posting.

Did you resolve the issue?

yes, i think it's my client problem, i redownloaded mc and issue resolved