C13 has problems importing an SMF file that contains more than 16 tracks, in my case 32 tracks.
The possible 16 MIDI channels are mostly used twice (each by 2 tracks, but not at the same time).
The file is error-free; it can be loaded and played by both normal MIDI file players and Cubase 12.
In Cubase I use the following setting for MIDI import:
If I import the file into Cubase 12 with these settings, each of the 32 MIDI tracks becomes an instrument track in the Cubase project.
HALionSonic 7 is loaded into each of these tracks as VSTi.
So everything is as it should be.
However, the following happens with Cubase 13: Some tracks do not load HALionSonic as VSTi, but rather HALionOne (which is still on my hard drive but is no longer used by me.)
Addendum: I only noticed this behavior with the Windows version; on my Macbook Pro, HALion Sonic loads on all tracks. However, HALionOne is not installed there either.