[1824] Unable to Buy Trains

[CzlDzl]

1824
GameID: Id: 223464
Https://18xx.games/game/223464

When passing error:
Undefined method 'buyable=' for nil

Also unable to finance.

To reproduce errors, try anything to move passed the current step. Game is unable to move forward. It can be undone and redone up to the same point.

[perwestling]

This is probably the same issue as #12076 so I will set this as a duplicate.

A correction is ready, just waiting for deployment.

It is possible that this will archive the game, but we should revisit this after correction has been made available to see if it is still an issue (if the game survives).

[perwestling]

Game was archived so not possible to troubleshoot, so I am closing this.