Choosing the “regions” mode in the rendering window, the file name in “create named files” normally switch on “regions names are used” by default. But since we’ve uploaded the last version of Wavelab, this option doesn’t work well anymore. After the first rendering, the rendering window still keep the same options by default, BUT the “create named files” slot become gray with nothing written inside. This means that for every rendering we want to do with the same specifications, we have to reset the window to avoid a name error (“files name is invalid”). It drives me crazy!

Right, you have found a problem that needs a fix. The quick solution is to click twice on the check box labelled “Create Names file(s)”.