Curiouser and Curiouser

[Beebop]

So riddle me this..

I just got done making my dam mission (which was a huge success) and one of the guys asked if I could make a practice mission so he could practice bombing.  (He's usually a Spitfire pilot).

He wanted both high level practice so he could hone is bombsight skills as well as low level, particularly skip bombing.  He also wanted a mission with no opposing fire so he could just practice bombing for accuracy.

So, using the same map (the guys love the Velikie Luki Summer map) I proceeded.  On the same lake as the dam was on I put a cargo ship and all the needed logic to make it work, the very same logic as for the dam mission.  (In that mission I used the little Russian AA boat because the S-80 couldn't make the tight turns needed to make a circuit on that lake.  It was a very aggressive boat, during testing a fly flew in front of me and that little boat aimed it's guns at my screen and fired away.  Fortunately the bullets missed me...and the screen. lol).
Anyway, so I tested the mission and the cargo ship just sat their like a waterlogged log.  "Must have screwed up the logic" I thought as that's always been the case before.  But no, it was right.  I used the same exact logic, built it by hand instead of importing it, double checked Sketch's excellent "How To Make Ships Move" video...everything was right.  So what's up?
I tried different types of logic, Mission Begin Translators, Complex Triggers, Check Zones, made the ship enabled and not enabled, triggered by an Activate MCU, checked, double checked and triple checked my Timer timings...nothing worked.

So on a whim I changed the cargo ship to a riverboat....Volia!  It worked!  (I have since changed it to a destroyer (because it's a higher profile) set to Low for the AI and High for the waypoints.  I attacked it with a P-38 and knocked out a gun and it didn't shoot back).

 

Now the question is, why?  I know cargo ships don't go on lakes in real life, unless it's a iron ore ship on the Great Lakes.  I just wanted to give him a nice, safe, slow target.
Is it a draft Issue?  Is the "keel" of the cargo ship too deep for a lake?  It can't be the issue like in '46 of being too narrow or too shallow to make ships move on it and having to trick the FMB as smaller ships are fine.

Is there any possibility that I overlooked something? 

Or am I yet again trying to make the game do something it was never designed to do? 

If nobody knows, that's fine, I just thought I'd ask and see if the helpful ME Guru's here could point the way for me.  As it is though, I have made it work for now. 

[JG4_Deciman]

Hi there

 

Assuming your ship spawns but is not willing to move..

Here is the solution (or better the reason)

 

I ran into the same thing some updates ago.

Ship moving into sea harbours (Rotterdam) before suddenly stranded.

Update was released (after reporting that problem) and ships were able to enter/leave that harbour again.

But Rotterdam was a 'sea port', and you're trying to place big ships into a lake.

Try the same logic (because that is not the problem, but the water deepth is) with smaller ships (peniche)

because they are designed for 'inbound' waters...

 

Deci

 

[Beebop]

So the game does differentiate between the open sea and land bound lakes....ah-ha.

I have gotten everything but the large cargo ships to move on the lake so if that's the "game limitation" then that's the way it is.

 

Thanks for the explanation.