Hello! We just tested this scenario several times with up to 5 clothing presets, 5 hair presets and 5 face presets in a single character file, and we didn't encounter any problems except faulty batch export which should be fixed by the next nightly build updates.
Maybe we can examine your character file (the .mqn one) to better determine what is the cause. If you're willing to spare your time for this, you can send the file via e-mail to: hello[at]ar14.works
Really sorry for your inconvenience, and thank you very much for your feedback!