Unfortunately there seems to have been a mix up around the time I revised the Mapping Guide. I'm not sure what happened there, but here are the current Mapping Guide and Supplemental Notes pdfs zipped up for you.

Put them in this folder (where you will find the ones that already exist on your system). Overwrite the existing.

C:\ProgramData\Profantasy\CC3Plus\Annual\Issue 155 - The One Day Worldbuilder

Stage 1

I exploded the land polygon because as an export from FT3 it was automatically a 'multipoly', which means you can't edit it or trace it. Then I hid the land and trimmed that black line down to just the wiggly side so I could see what I was doing.

As a side note to that simplified instruction - although I had picked the properties of the land before I exploded it, so that the exploded polygons would have the same properties as the original multipoly, they had a line width greater than zero, so became outlines rather than solid polygons. I put that matter right using Change Properties on all the bits of land to reset the line width to zero.

Stage 2

Next (and because I'm not great at using the editing facility of drawing tools) I decided to use the Land, Default drawing tool to trace the original landmass, breaking off the tracing at either end of that wiggly black line and tracing that instead of the original coastline in that area to close the polygon. The default land drawing tool uses a different fill colour to your original land mass, which is coincidentally convenient to show the result.

I then deleted the original landmass, hid the black line, changed the colour of the newly traced landmass to match the rest, and picked out the lakes in solid magenta (colour 6).

Another side note here. FT exports are notoriously full of far too many nodes, which makes the drawing sluggish. Since this map has only just begun I used the SIMPLIFY keyboard command at a distance of 5 units (you are prompted for the setting in the command line), which greatly improved the responsiveness of the drawing.

The reason for turning the lakes magenta is to use an alternative method for drawing them so that you don't have to re-multipoly the land. If you look I have added a new sheet effect to the land sheet called a Color Key. The Color Key knockout colour is magenta, so where the lakes are magenta they will become holes in the land when the sheet effects are turned on, like this.

Other adjustments I made to speed up the drawing just a bit were to change the units of the LAND sheet effects to 'map units' and switch off one of the glow effects. You may find it faster to work with effects off in this very large map unless you really need them on to see what you are doing.

The full process was quite involved, so I've uploaded the end result if you want it here.

That looks like a great start wintermute :)

Have you tried viewing it with the sheet effects turned on? You can do that by checking the box called 'Activate Sheet Effects' at the top of the Sheets and Effects dialog. (You get this dialog by clicking the Sheets and Effects button|CC2SHEETS|on the left toolbar).

As you have mixed styles together I don't know what sheets and effects you have in this map, so it may not look as you want it to look straight away. However, with a little patience you can add, delete and edit the effects on each sheet to make things right.

Its hard to say for sure without the FCW to examine, but it may be that you matched the colour so very well that you have some transparency acne going on there with bits of them not registering as separate from the background. Changing patterns with different zooms is one of the telltale symptoms.

Try hiding the outer lines using a Color Key sheet effect rather than placing background coloured objects on top of them.

If you would be willing to upload the FCW we would soon be able to see if TA was the cause or not.

That's the paragraph that gets most contact questions. I asked that one myself a while back before I became an employee. It's the bit of the EULA that really is down to the discretion of the owner of the rights, and which can't be answered by anyone else - not even me.