I was able to replicate this using the advanced example:
- right click on the predecessor/successor cell of a task
- Select the 'equals' options
Expected behavior: I would see the list of tasks filtered down to other tasks that have the same predecessor/successor
Actual behavior: The chart is empty and when I click in the header cell of the predecessor/successor column I see some random number (I believe it's the tasks id)
I've attached a video of this behavior.