If you are mixing styles and the symbols from a newly introduced style have the same name as those in the original or earlier style the FCW holds onto the first definition. It's hard to say what's going on, though. Maybe upload the FCW and list the missing symbols - see if we can add them and make them stay?

If you are hiding layers that might account for it, or even just the sheets. If you hide a sheet that might be the sheet those missing parts ended up on without you being aware they were there.

It's quite difficult to say what's happening without the FCW.

No one is fantastic at CC3 right at the outset ;)

It's an area in square map units. In an overland map that will be miles if it is imperial, or kilometres if its metric. In city or dungeon maps map units are always either feet in imperial, or metres in metric.

The thing about top down mountains is that they are pretty inflexible as symbols. Hill shading means they can't be rotated or mirrored, and that means you need maybe a hundred symbols instead of just the usual 20 or so.

You might think that using a map file would be the solution, but at the current time if you have a faded edge all the way around a symbol as would be desirable for a top view mountain or hill to blend it into the background properly, the map file doesn't work properly. Faded edges upset them quite badly to the point where you end up with strange white strips of missing rows of pixels in the resulting symbol. I haven't worked out how to get around that problem myself, which is why I haven't yet done a top view overland style.

Thanks Julian :)

And you're right - the assets have been handed over so Ralf has time to do his bit of magic making it all work properly for you. Myabe if I have time I might do something, but I've just started a new much larger project so I don't know when that might be.