Slitherine

In multiplayer mode. I setup an challenge for "ARMOURED SHOWDOWN"
Opponent accepted the challenged and I clicked to begin my first turn.

I game crashed and a small window popped up telling me that I am missing an IDS file.
Clicked it and then one at a time many windows appears (one at a time after I clicked OK)
most seem to be telling me that I am missing IDS files for "Sealion".

Note that I have purchased Sealion and as far as I know, I am able to play the scenarios.

I ended the game and sent a note to my opponent telling him of the issue.

I have not had this issue to date.

Have you played this map before? I forget whether that map is a custom map or one included with the game.

Do subsequent MP games play without issue?

Cheers

Pip