Uncaught TypeError TypeError: Cannot read properties of undefined (reading 'passengers')

[Meowphedrone]

• The FAQ doesn't contain a resolution to my issue

Versions

• mineflayer: latest
• server: local vanilla server, 1.21
• node: 20.11.0

Detailed description of a problem

Uncaught TypeError TypeError: Cannot read properties of undefined (reading 'passengers')

crashes the bot when loading a chunk containing a mounted vehicle entity (striders with baby striders/zombie piglins in my case)

What did you try yet?

aint much, i just slapped additional checks to make sure vehicle isn't undefined and it worked. a band-aid solution but what do i care

Your current code

//BEFORE:
    for (const passengerEntity of passengerEntities) {
      const originalVehicle = passengerEntity.vehicle
      if (originalVehicle !== null) {
        const index = originalVehicle.passengers.indexOf(passengerEntity)
        originalVehicle.passengers = originalVehicle.passengers.splice(index, 1)
      }
      passengerEntity.vehicle = vehicle
      if (vehicle !== null) {
        vehicle.passengers.push(passengerEntity)
      }
    }
//AFTER:
    for (const passengerEntity of passengerEntities) {
      const originalVehicle = passengerEntity.vehicle
      if (vehicle && originalVehicle !== null) {
        const index = originalVehicle.passengers.indexOf(passengerEntity)
        originalVehicle.passengers = originalVehicle.passengers.splice(index, 1)
      }
      passengerEntity.vehicle = vehicle
      if (vehicle && vehicle != null) {
        vehicle.passengers.push(passengerEntity)
      }
    }

Expected behavior

uh. not crash

Additional context

meow

[Meowphedrone]

the location of the code that causes this issue is at mineflayer\lib\plugins\entities.js:836:39 btw