I’ve run some tests with Cubase 14 and so far, I can’t reproduce this.
Tempo tracks are faithfully imported/exported for me. I’ve checked with the old Yamaha XG Works Sequencer, Bidule, and Dorico 5.
One thing to be careful of is that if you import MIDI into an existing Cubase project, it will overwrite the exiting tempo track with whatever is in the imported MIDI file. I think this is normal. So, if you want to bring MIDI into an existing project and not have it affect the tempo track, it’s probably easiest to bring it in as a new project first, and copy/paste tracks to the other project. OR, import to cursor, and have that set way off towards the end of the project (after your exiting material), move it where you need it, and clear out any extraneous tempo track data. OR, as Martin suggests, Tick this before importing…
I DO find a number is issues with MIDI IMPORT/EXPORT in Cubase 14 though.
When exporting like this:
The initial Volume and Pan information from the MIDI track(s) Inspector(s) are NOT being exported. I’m only getting the Bank/Program Change stuff.
Bass Track to Export in Cubase
Notice I have a Volume Fader (CC7) set at 100, and a Pan (CC10) setting of 19 via the inspector.
Bass track Imported back into Cubase 14
Notice the Initial Track Inspector “Volume (CC7) and Pan (CC11)” information is lost…
Bass Track in XG Works
Notice that the bank/patch info setup with my “MIDI Device” patch list exports as expected, but the initial CC7 and CC10 values established in the Track Inspector are missing.
On MIDI import I’ve run into several issues that I’ve reported here:
[Cubase 14] Issue with Standard MIDI File Import - Cubase - Steinberg Forums