I got your file via email, thanks.
Yes I do see that the source LMS file is configured for DMX and when you convert, it shows having 161 DMX channels, 48 with effects. The converted file does play in Nutcracker and it does have 48 channels.
For fun, I did this:
1. Convert the Halloween LMS file to NC. Got the 161 DMX Channels message.
2. Convert the newly created Halloween XML file to LOR as Halloween2.LMS
3. Convert the Halloween2.LMS file to NC. The 161 DMX channel message is gone.
Does that now work on your lights? I works on my E131 controller.