umask in updater (bad /etc/rspamd/local.d/maps.d/ permission)
The umask set when running updates seems to cause /etc/rspamd/local.d/maps.d/ to have too restrictive of permissions. At minimum that directory mode needs set, possibly look at other file/directory creations as well.
https://www.howtoforge.com/community/threads/solved-rspamd-errors.86592/