[mytrivo]

I've been using Calibre's connect/share function to send mobi files to my Voyage. I have a plug board set up to add the series and number to the title. my formula is:
any format:any device = ([{title}{series:| (| }{series_index:0>5.2f|- #|)}] -> title)

I noticed that some of the titles don't have series info included. I've tried imbedding the metadata and also re-converting the mobi file then resending the file and that hasn't solved the problem.

I have Calibre 3.39.1 and Kindle Voyage with firmware version 5.10.3