Re-Sync FortiGate logs to FortAnalyzer?

Hello guys

We had a problem which caused that the connection between several FortiGates and our FortiAnalyzer has been down for over then 2 weeks. The connection right now is ok again, live logs are being synced again. The problem is, that it doesn't look like the logs which queued (over 400k) are being re-synced now with the connection established again.

Is it somehow possible to manually Re-Sync FortiGate logs to the Analyzer after a longer interruption?