I just did a quick classic 1805 campaign with v1.21.04; generally all went well, but a few minor comments:
--minor thing, but the bug with clicking on the light ship icons is still there;
--the Brits still make an amazing number of pointless amphib attacks, especially on Lille.
--not sure if this matters, but I noticed that there are two "Area3" on the map: one is the sea area midway up the Norwegian coast, and the other is the sea area just south of Sveaborg. I'm guessing these aren't highly-trafficked areas, but I'm guessing this could lead to some weird bugs...
--I just noticed in this game that often when I chose flank attack, I was not given the chance to choose my flanking force before the battle started...seemed to usually happen with a "cordon" defense--I guess this is a feature, not a bug?
For light ships, is this trying to build light ships and double clicking the icon? I still need to find how this problem is happening to fix it, but the work-around is to just double click below to undo it. And there aren't any light ships or transports to build in the classic scenario. I did just fix a bug for naval unit display, to show both heavy and light ships in heavy fleets that have both, in the alternate EIH scenario.
I've been experimenting with blocking British/Russian amphib landing into France and Holland prior to 1813 and this seems to be helping some. At least it redirects them to other areas and maybe northern Germany region. Long term, I need to add naval transport code to reinforce or withdraw as necessary.
Area3 duplicate near Sveaborg looks like it should be Area700? This error has been around since v1.00! Fixed now.
Cordon defense blocks Outflank attack. See rule 11.2.2. Working correctly.
Empires in Arms Development Team