Endnote does not recognize library and starts with number 1

Hello,

I´ve written an word text (word version 365) in an odt template yesterday and inserted 16 citations with endnote X9. Today I opened the word file and inserted new citations, but the numbering started always with number 1 and not number 17. Endnote did not recognize, that there are references from the past day and the same library in the document.

I would be very pleased to receive support,

kind regards, Elisabeth