[NO REPRO] Submarine Tutorial CMO 1.3

[Goofeyfoot]

Error:

!!!WARNING!!! EXCEPTION FUSE REACHED (x20 exceptions) FOR : -- Bv1.08 - Build 1728.2 -- Value cannot be null.
Parameter name: source -- Scen : Submarine Tutorial 1.3 -- DB : -- Exception: Value cannot be null.
Parameter name: source
Stack Trace: at System.Linq.Enumerable.ElementAt[TSource](IEnumerable`1 source, Int32 index)
at Command_Core.EventCondition_LuaScript.get_IsTrue(Scenario theScen, SimEvent theEv)
Call Stack & Error details:
Error at 101318:

[Dimitris]

Logged #17516

[Deserere]

I've tried to run the scenario and to mess with the units.
I've not being able to reproduce this.
Do you have further instructions to reproduce the issue?

Also for further posts it's a good idea to post a scenario to facilitate and speed up the debugging