I don't know what caused the error, but usually that same dialog appears if you mis-type a keyboard command - only it repeats the mis-typed command letter for letter rather than that distinctive XPSYMCAT; one.

I've had the XPSYMCAT; one myself a couple of times, and the same 'can't use the symbols' experience. It does sort itself out though if you restart CC3. It must be some internal call for a command that goes wrong under certain rare conditions.

Hi everyone! :D

In this week's Live Mapping session Ralf will be starting on the creation of a new city mapping style, based on a set of maps he created years ago. This is a project that will extend over several sessions, so be sure you don't miss the first one.

Come and join in the fun live on Youtube here:

https://www.youtube.com/watch?v=wrzhfzKIIbM

Or you can watch it here later if you wish

It's a good enough map, but I think it might look better if you reduced the thickness or opacity of the hex grid a bit.

That's a pretty map :)

This set of tutorials by Remy might help.

https://www.youtube.com/playlist?list=PLulP-cGMLxw4qTpXfilRHgbDUg8WvrEX2