Good morning,
I believe I have also encountered the same error, with recalbox 7.2.2-Reloaded and rpi3.
When I click either KODI menu item or the dedicated controller button I get back to recalbox boot screen then to recalbox.
Through ssh I have seen that in "/" (root) there are two broken links:
.kodi which should point to /var/kodi
.xbmc which should also point to /var/kodi
however in /var there is no "kodi"
That might be the reason for the problem above?