ZBrushCentral

Zbrush tool sudden scale change

I am working on a tool file with multiple sub tools and everything is fine. It matches my 3dsmax file. Over a few days I open that zbrush tool, sculpt a bit more, save increment, reopen etc. When trying to export it today I realize that the scale has changed to tinny-tiny. When I check my increments I can see that at some point the scale of my zbrush tool with all its subtools has changed. How? Whyyyyyyyy? I did not import or export anything, just worked on the file in Zbrush. How can I bring it back to its original scale? Btw I am working in 4R6 on Windows 7…