It should be possible to carry out the command sequence as described Jim; you can combine arcs like this, as far as I'm aware.

I have sometimes found, rarely, that CC3+ will crash repeatedly on a specific event for no obvious reason, and that this can be overcome by simply adjusting the view on the map slightly, and/or drawing the item after which the crash has happened in a slightly different place. If you need to change the shape of a simple polygon afterwards, it's usually easy enough to move a node or two.

Not sure if that's what's happening here or not. If this doesn't help, then as Jim suggested, letting others more technically adept here try out your problematic FCW file might be the way forward.

Next is another curiously isolated hamlet, this time closer to the River Clack, so it appears on the map as well, although the hamlet's existence is presumably due to the fortuitously-discovered, naturally enough magical, Crimson Rose Well:

As might be guessed, the odd appearance of the settlement and its riverine landing-stages resulted from the original random base map being one showing a small castle and a defended landing on a river. This being Faerie, the defensive walls become high "walls" of thorny vegetation sporting great, heavily scented, crimson rose blooms, and the castle becomes a hamlet-sized community dedicated to looking after the Well and those who come here seeking its magical aid. The fact there could be a powerfully magical sword hidden away within the thorns somewhere (from the featured text) merely adds an extra note of interest. Plus GMs can have fun accounting for why this bit of Embra is so apparently isolated from the rest of the city it needs a substantial landing area all its own on the Clack!

Buildings on the non-streets maps means interiors, and again these are all of just the one storey:

Some of you may recall Eblenn Hill has featured before among these Embra Places maps, as it's the substantial hill the first of the Enclosed Places was set upon, the Freed Haven Floral Garden. Whether the version here is the same or not, and how - or if - it may relate to the "other", is left for GMs to decide.

The first two Watery Places were drawn as smaller maps than usual, based on the reduced-size template designed for the Lawn Market map. This was because, as with Lawn Market, both base maps were generated from randomly-selected maps in the old Judges Guild "Temples Book I". As noted previously, this book used a much smaller scaling than the other old JG works I was drawing on for inspiration in creating the Embra maps. The first of the Watery Places then is the Bittersweet Basin Swimming Pool:

This is a remarkably simple area by comparison with many of the previous Embra Places maps, though of course variety is important in constructing an array of maps of this kind, to prevent things becoming too predictable. The featured text notes were used to add to the details shown here, without taking away any of their oddness. It's perhaps worth noting that as a mapper, it's equally important to have a few maps that are easier to produce like this, again helping avoid things becoming too stale and "samey". Especially as not all the Watery Places maps were going to be so "quick and easy"...

The third set of Embra "Places" are the Watery Places of Interest, accessed from the appropriate pie-segment of the "Official Guide" map:

One of the aspects that caught my attention from when I originally bought it in the Dover Clip-Art "Celtic Borders on Layout Grids" hardcopy book, was a page of individual knotwork creatures. Here, I simply couldn't resist the two merfolk to add to the borders for the Watery Places, with a neat little criss-cross design just in the frame's corners. As previously, the link-spaces on this schematic drawing are simply labelled extracts from the actual linked maps, with GM notes. The pattern for the layout here was basically the same as for the first of these Places of Interest maps, the Enclosed Places.

Lastly, the fourth map covers the seven Crossing Places Streets in one:

Which of course is tricky to see much detail on at this size, so some closer views might help:

Two of these are obviously bridge-style crossings, albeit in rather unusual ways. Spiderweb Way suspends part of its street, its paths and buildings high above an Inlet of the sea, for all Embra is in the most landlocked part of all my Errynor maps. This is, however, Faerie, so think more surrealist thoughts, and it all starts to make perfect sense. If it doesn't, you just need to think more surreally... Seafield Road too suspends part of itself high above a deep, rocky ravine, although one that nobody ever seems to have managed to get down into. Like the sea Inlet, is it real? Or illusory? Naturally, choosing which Place of this pair was to have the sea inlet was quite deliberate; can't make things too obvious in Faerie always, after all! 

One more street, Ferry Road, has a ferry across the River Clack at its end, but the other four are all narrow ways linking broader routes that are completely ignored and unnamed here. For clearly, only the Crossing Places matter in this case! Naturally, each of these smaller streets has features all their own too - the odd, wailing music along The Remin is only one curiosity (yes, that's NOT mentioned in the featured texts, only in the text and PDF files), as the houses there appear to be made of thorny bushes, for instance.

Now we only have five more "Places" groups to discuss...