I just explored a crazy bug. The regex-statement in den DB ist as phpMyAdmin says: "/alt ([\pL]+)/i". And thats exactly what i want, allright so far. But I wondered why all chars in my guild became Mains and have done some echo debugging.
What i found out is, that $addon_conf['AltMonitor']['getmain_regex'] in the update.php returns "alt ([pL]+)/i" and the "\" in "\pL" ist missing. As a workaround I hardcoded my regex-statement in the code and everything was fine and detected correct.
Anyone an idea why $addon_conf['AltMonitor']['getmain_regex'] kicks the "\" in the regex-statement?