We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
#3305 - Theme Wizard: Wizard does not properly copy custom GLOBAL_HTML_WRAP to new theme
This may be a bug still though, given expected behaviour of the wizard.
sources/themewizard.php:make_theme -> themes3.php:actual_copy_theme -> themes3.php:afm_copy.
i.e. make_theme copies the origin theme, which works by doing a directory scan of the origin theme and copying everything from it.