Another thing that might be affecting the export is if you are using less than 85% JPEG Quality. Some of that pattern reminds me very much of the kind of artefacts you get when exporting low quality jpegs.

If you click the fill style box and open the Fill Style Properties dialog, then pick the Bitmap Files tab and select one of the troublesome fills you should see that it is Scaled and that it has a set Width and Height.

(Sorry about the jiggly red lines - my hand is a bit shaky, as I have Covid right now and I'm not terribly coordinated at the moment)

To make the fill appear larger in the map and reduce that pattern a bit you could increase the dimensions in those boxes. As with all things, though, there is a limit to how far you can push it like that before you get pixilation issues.

It's the same scale in CC3 as it is in your export. The appearance may differ a lot, though, depending on the size of your export.

It should be possible to repair the existing map one of two ways, in no particular order:

• By renaming the bad symbols in the Symbol Manager, OKing that, saving the file, reopening it, and then clicking the good symbols from the new FSC to load them into the map. Then you can replace the renamed malfunctioning symbols with the new ones.
• Alternatively, and if that sounds a bit complicated and you only have a handful of them in your map anyway, you could delete the bad symbols from the Symbol Manager, save and reopen the file, and then paste fresh from the new FSC

What happens if you create a new map in the style and paste the bushes?

I think that is a wise choice, though it might be an idea to get an ok from the customer before you go too much further.

Just one suggestion about the map right now is to reduce the shadow from that cliff quite a bit - length, depth and blur the edge more. It looks a bit like a floating island at the moment. If you want to keep the length, then make it not so dark and give it more blur.