xml log with xmlgroup is without command

I tried to use XML Group, but I don't understand why group name without first word.
For example, for command: "synchronize remote -delete -criteria=either -permissions=0644".. I see: "remote -delete -criteria=either -permissions=0644" and so on.

Why I can get this mistake?

I cannot reproduce this problem. What version of WinSCP are you using? Post both session and XML log files.