I put several Icons from Charcter (Wingdings and Verdana) to a project, change size, color etc., save and export. Everything works fine.
Some days later I open the same project and all Icons are destroyed. It looks like that they don't know to what font-family they belongs? but I'm really not an expert.
But I don't want to write about errors only. MetroStudio ist really great! MetroStudio has already saved several days of work.