I have seen one other report of this behavior since the Jive Works upgrade to Jive 9, however the cause was specific to their account. As such I would recommend submitting a case in your customer group ( MyJive Secret Support Group Administration FAQ ) as a next step so that a member of our support team can investigate into the behavior further.
When doing so, please include the following:
1. Specify this is occurring here in the Jive Works community
2. Replicate the behavior and note the time/timezone so that they can reference the back-end logs of Jive Works