multiAVCHD won't create main menu

[The Realms of Gold]

Hi all,

I'm having trouble with using multiAVCHD to burn a multi-title DVD out of some AVCHD (.TS) files. Everything works fine, including transcoding for SD-DVD, except that the two titles come out as separate DVDs, with no menus anywhere. The menu preview works, and I've tried uninstalling and reinstalling the program to reset its defaults in case I checked something unusual. The only settings I've changed from the default are:

* Force [D]AR to 16:9
* Create top menu
* Setting a custom background image

Does anyone have any advice? Thanks!

[The Realms of Gold]

To clarify, out of the three things I've changed from the default, the top two are check-boxes and the bottom one is specifying a file that is a 1920x1080 .JPG.

[The Realms of Gold]

Update: using the default background instead of a custom one doesn't fix the problem.