Sorry for the delayed response. We're going back to close past issues.
If you're still looking into this problem, can you try to upgrade to at least Prodigy v1.11.9 (we also just released v1.11.10 that is compatible with spaCy 3.5 this week too)?
We made several fixes including a front end bug that caused duplicates in high latency multi-annotator workflows.
Please reply on that newer post if you experience any problems.