Alexey Zimarev

I let it commit the duplicate position and it will raise a warning when it happens. Try with the latest preview from MyGet.

It's a bug, I will fix it now.

It's in the latest

I don't think it can be fixed without debugging, as the code is very simple, and I can't see where the null reference can happen: ``` _positions.RemoveWhere(x => x.Sequence

Ok, I made sure that there are no duplicate positions added to the list of pending positions. I would expect the change to fix the issue.

0.13.1 contains everything. I haven't done any change after that other than in branches. I didn't claim that the issue is fixed, as I am unable to reproduce it. The...

Do you still get null reference exception?

Would be nice if you can check what's inside both collections.

Have you confirmed that the handler hasn't fired, like with logs or something?

No it can't be. The checkpoint commit is downstream from the projector. Are you sure you are doing `SaveAsync` or `ExecuteAsync` and it's not being delayed in any way by...