NullReferenceException when trying to talk with trader of flying-by trading ship

[m1dyyy]

Hello.

After playing couple years in-game I was unable to trade with flying-by trading ships via comms console and trade caravans. Instead of showing window with trading items my colonist it doing nothing for couple seconds then it goes back to other activities.

After enabling development mode from in-game menu I was able to trigger that error. Fortunately it was logged to log file.

It's attached below.

Exceptions stacktraces are located in 323 (comms console) and 227 (human trader).

I'm on Rimworld Alpha 13 (0.13.1135 in game main menu)

[attachment deleted by admin - too old]

[ison]

It's a known bug which will be fixed in the next release. Thanks for reporting though.