Every Cron expression creates Error

Setup, Configuration and Use Runtime
1

I am using Build #567

Every cron expression e.g.

rule "test "

when
Time cron "0 0 16 1-9 1 ?"
then
// further statements
end

Creates the following errror message

12:19:34.798 [ERROR] [e.internal.engine.RuleTriggerManager] - Cannot create timer for rule 'test ': Unable to store Job : ‘DEFAULT.all.rules#Weihnachtsbaum an #0 22 16 24-31 12 ?’, because one already exists with this identification.

Is there any user error. It seems that this is new behavior of this build.

2

Did not see

issue is already discussed here