Orphaned agent data in Notes 8.5

I have export of DXL from my database and found many orphaned agent data. It's "agentdata" tag that does not follow "agent" tag.

First of all I check help: Note also that the agentdata element immediately follows the agent element, but is not contained by it.

Second - look for a possible problem and solution. Take attention, "In order for the utility to clean up orphaned Agent Data Notes, you must have at least one LotusScript agent in the database.". I spend half of our until detect this.