I’m running v1.9.0.beta13 +52 that I upgraded yesterday. This morning, I got a PM about 7 flags waiting to be handled. These are posts are all old posts that were flagged (all custom flags) by none other than @downey (although I don’t think it’s his fault).
When I agree with the flag, I get a generic 500 error. When I disagree with the flag and I refresh, the flag comes back. I don’t see anything unusual (or related in the logs).