I assume you mean "programdata" here and not "programfiles", as I can clearly see references to c:\programdata in your original screenshots.

You can't split your data directory like that. If you picked d:\ProFantasy as your directory during install, that's fine, but then you'll need to stick to it and keep putting everything there. CC3+ won't recognice the programdata directory in that case (it can only have one data directory), so anything you put there will be guaranteed to make red X'es, because all the templates and symbol catalogs refer to your data directory (which is d:\ProFantasy for you)

The issues with the footprints is that every pixel are semi-transparent. The effects system doesn't like that too well. I initially tried to use them in my ice cave live stream as well, but got the same issue when adding effects. I think symbols like these is why DELAYDRAWSYM is enabled by default and you have to explicitly turn it off, because this causes them to be restored after the effects system have "lost" them.

Ouch, that looked worse than I would have expected.

Try using TRACED on it instead (Just type the command on the command line).

A positive offset makes it larger than the original. You can experiment a bit with the smoothing distance, but since the outline of this effect probably should be more smooth than the actual coastline, a value of 1-10 may be appropriate, depending on your map scale.

Your maps are nice, but I notice several of your fills look horribly pixelated. This is either due to their scaling being really wrong for this map, or the resolution settings being wrong. You can check the resolution settings by going to :CC2RESMODE: and set them to manual - very high and see if that changes anything. If it doesn't, you'll need to edit the scaling for the fills, which you can find by clicking the fill style indicator in the top right, go to the bitmap files tab, select the correct fill, and severly reduce the values under 'scaled'.

Also, I would recommend replacing that old "striped" stone texture. That is an ancient legacy fill from the CC2 days, you should have better stone variants available.

Also, those castle walls will look nice with a small bevel applied to them, it helps enhance the 3-dimensional feeling of the wall.

I assume you refer to the image gallery here on the forums?

If so, the answer is no unfortunately. The image gallery plugin that is in use here doesn't support sub-albums or non-image files (you already have the ability to create multiple albums). And there aren't any real alternatives to this plugin either.