It's mainly to do with the drawing order.

Symbols are by default drawn twice to ensure the semi-transparent pixels are not detrimentally affected by the sheet effects. However, the whole map effects are done last of all, and will affect the whole drawing, no matter how many times everything has been drawn up to that point.

You can disable the second drawing of the symbols using DELAYDRAWSYM, but this will damage semitransparent pixels in the symbols. You might not think there are a lot of semitransparent symbols but in truth the edge of nearly all symbols is antialiased, so there will always be a very thin fringe missing, and that may be enough to make the symbol look odd.

DELAYDRAWSYM automatically reverts to 1 next time you open CC3.

Having said all of that there are notable exceptions to the rule. Most house symbols will respond to colour modifying sheet effects because of the presence of map files, which control the shading of rooftops. City Cliff symbols also have map files, and will also respond to these effects.

Hi Bruce :)

It all looks good, though I recommend reducing the node count a bit by using the keyboard command SIMPLIFY with a setting of 0.5.

You currently have 5228 nodes in the mainland object. While this isn't too many once you have traced a few terrain fills around the edge of it, or added a coastline (bascially a duplicate of the land but on the COASTLINE sheet), you might start to notice a bit of lag going on when you zoom or pan.

That one action reduced the number of nodes from 5228 to 1493, which would give you a lot more wiggle room if you intend to be quite lavish with the terrain tools.

If you click Add-ons in the Tools menu it will show you a list of all the add-ons and annuals you have installed. If you pick one of the annuals from the list you will be taken to the relevant webpage with a short description and links to the all the issues Mapping Guides. That will probably be more efficient way of finding things than having to search a huge volume of them all stuck together.

If you just want to look at a page of thumbnails to remind yourself of what's in each one, there's a slightly out of date one here:

Annual links

This only works if the houses have special files called map files that allow CC3 to shade top view rooftops.

It might be that you started a map using the CC3 dungeon template instead of the DD3 dungeon template. The CC3 one doesn't have as many symbols in it. But don't worry you can open the symbol catalogues from DD3 by clicking on the little folder button at the top of the symbols pane and navigating to them here: C:\ProgramData\Profantasy\CC3Plus\Symbols\Dungeons\DD3\DD3 Color

Easy mistake - I did it myself a couple of times.

I think it is unlikely that you need to reinstall anything.