Playback inconsistent

Having playback issues. I have a drum rack with 7 esimplers with a simpler. I’ve tried mp4, HAP Made sure each clip is 1080.

I’ll play the clips. Everything is great. Close the session reopen and some clips play. Some are audio only others simply don’t work. Everything is on an external Samsung T7 SSD.
I think it’s a user error but not sure where to look.

Thanks

Ableton Live 11.3.25
Ebosuite 2.2
MBP 2019 2.3 GHz 8 core
AMD 8 GB graphics card
32 gig ram
Sonoma 14.4.1