Serialization exception when an exception is generated in another scope

This project is not specifically set to run in the background, but it doesn’t have any UI automation. It just grabs a queue item, creates a queue item in another queue and waits, then moves the email. Any chance the bug doesn’t exist in a different version of O365 or Persistence?

We’re using O365 2.7.24 and Persistence 1.4.8. Also System 24.10.7.

One thing that perplexes me is why “continue on error” has disappeared from so many activities, but that’s a topic for another day. It would presumably solve this problem for us.