Kerbal Space Program

Problem:

When docked to a craft, time accelerate, and then attempt to undock, the Undock button does not function.

Notes:

When bringing up the console log, this message appears when clicking the undock button:
[EXC 00:24:19.313] NullReferenceException: Object reference not set to an instance of an object

Five individual craft were docked together at the incident:

• BUS 101; to below via Clamp-O-Tron Sr.
• BUS 101; to below via Clamp-O-Tron (Normal)
• FT Chain Transport; to below via Clamp-O-Tron (Normal)
• FT ManPilot v1; to below via Clamp-O-Tron (Normal) (Without the probe head section)
• LNDR One

The undocking attempt was between the FT Chain Transport and FT ManPilot v1. After entering time acceleration (x5) and exiting back to (x1) rapidly (about 0.3s between HotKey , and then . ) along a lunar-intercept orbit from Kerbin to stabilize the docked ships from wobbling around (and exhausting fuel from the FT ManPilot), I was unable to utilize the undock on the Clamp-O-Tron port on the FT Chain Transport.

Undocking the LNDR One from the FT ManPilot v1 and undocking the FT Chain Transport from BUS 101, then switching to LNDR One and docking to the FT ManPilot seemed to fix the issue.