while copying cells from calc to writer, the menu 'formatted Text' won't work. It had worked we a few days ago.

I can’t copy cells from calc to writer with the ‘formatted text’ menu. It worked well before, but for now it just happened like the ‘unformatted text’. I couldn’t get the table, only scattered words and numbers.
Could anybody tell me what is wrong with this ? My writer setting or the calc setting, or my computer system?

If you have a clipboard “manager” program activated then that likely is the culprit.