Failing with multi-file config and auto reload flag

Hi,

i have an issue running in multi-files configuration (using folder with *.conf files) and auto-reload flag (--auto-reload)
this causes a crash and shutdown of log stash when i am sending the syslog event for parsing.

i am seeing error message

"NoMethodError: undefined method `multi_filter' for nil:NilClass"

please advise if any one having this issue.