"break from proc-closure" error when approving a new users post

the title pretty much says it all. a new user posted and i get an error message when approving it.

i’ve set the trust level to zero, but that post remains queued. subsequent ones appear to be working. obviously i’d like to fix it anyway

it turns out they were ‘blocked’. i’m not sure why, i’m going to investigate now, but raising their trust level fixed it.