Amazfit Watch faces

I tried to modify one WF to my language and it works. But then I tried to add also seconds pointer. Everything works when I check it in settning. When I try to look at Real-size preview, all pointers are gone. Why? Everythig seems to be ok in json file.
I also tried to open existing WF downloaded here ond open it in WF editor. It behaves the same (bad) way. No pointer is in Real-size preview.
Could you please help me?

Thank you

Petr