Thank you for your efforts in offering assistance...so far nothing similar to what I have been experiencing seems to be in that thread.
As far as I can tell there does not appear to be a legal process that is doing this as the Mothership simply spins away with full health before exploding. In this mod the player actually has two ships that are identified as motherships to the program: the Pride of Hiigara and the Capital City. Both of these ships spin off the map and explode either in short succession or simultaneously. Everything else continues to work until the timer runs down that allows a player to rebuild its mothership without game loss. Clearly there appears some hard-coded fail-safe that indicates that if x occurs, the solution of last resort is to end the life of the player's mothership.
Another interesting detail that occurred on the most recent trial was that when the game year ended the player's income became negative. I have removed the 80 largest ships so far without effect...more to follow.
ALC - Wed Oct 17, 2018 12:50 am
It occurs to me that there might be an issue with the player having two Motherships. Have you tried removing the Capital City, or downgrading its status to that of a Shipyard, so that there is one Mothership per player?
Jelrak - Wed Oct 17, 2018 5:11 am
It is possible, but somewhat odd that it might randomly cause difficulty several hours into a game. Typically what happens is the same four or five ships become invisible and then within about half an hour the motherships spin away. I am testing to see what would happen if they are immediately re-built. I suppose if that fails and nothing else seems reasonable I will remove the second mothership designation.
ALC - Wed Oct 17, 2018 6:48 pm
I wonder if there is anyone on the Relic forums who might have come across the issue - Mikali comes to mind, over at isometricland dot net. Afaik, he is still active.
Jelrak - Wed Oct 17, 2018 11:30 pm
I will ask him what he thinks...thank you for the suggestion