It is caused by a JASSM-ER O-EMP (Civilian 2 side) impacting in a multiple units AB.
Just run the scenario and take a look at the exception log.
This exception should appear at least 1 time, reproducible in the attached save.
05-10-2026 14:43:45 -- Bv1.10 Beta - Build 1892 -- Object reference not set to an instance of an object. -- Scen : 2030 - The Christmas Surprise, Part 1 -- DB : -- Exception: Object reference not set to an instance of an object.
Stack Trace: at Command_Core.CommDevice.ResolveDamageFromEMP(Single PulseStrengthRatio)
at Command_Core.Mount.ResolveDamageFromEMP(Single PulseStrengthRatio)
at Command_Core.Explosion.Rpx2EqxrEHF(Scenario )
Call Stack & Error details:
Error at 192758436:
You can force the fuse exception by cloning the missile, as happens in the video.