Odd figure numbering


I must be doing something very silly, but my figure numbers are beginning with 440 and incrementing from there.
I’m compiling a section of my book to DOCX using the latest Scrivener Windows beta, Windows 10 (up to date) and Microsoft Word 2019.

This is what it looks like in Scrivener:

And this is what the compiled version looks like in Word:
Fig num.jpg

Would someone please tell me what I’m doing wrong.

Thank You,