The problem is that you're assembling a 1x1 matrix in parallel. It's dubious whether this should be considered a 'bug', but in any case it's unlikely to be fixed for some time since it's not a sensible usage case.
The problem is that you're assembling a 1x1 matrix in parallel. It's dubious whether this should be considered a 'bug', but in any case it's unlikely to be fixed for some time since it's not a sensible usage case.