For everyone else's amusement - we had an intervening conversation about this, because I had a similar though not quite same error with EodII new walls (based off Blue Lotus items and adapted), I also had extra one that if you assaulted walls with ladders and tried to 'capture' gate from above you couldn't.

Couldn't remember what fixed it - which wasn't particularly helpful.

Have been trying to get one set of the walls into mod-folder so someone else can use them but without overwriting existing wall set - we overwrote greek for EodII, which doesn't matter for BI mod.... mod-folder re-named version all works fine except ^^^ problem is back.


Any inspiration still appreciated, failing that hopefully I might stumble over same fix for my problem again eventually....... this time I'll write it down.