Unable to open my 10.5 CPR projects

Did some regression test techniques .
Started with 10.5 CPR with project containing VST plugins, AUDIO and MIDI tracks.
Loaded in C11 failed.
Removed MIDI tracks
Loaded in C11 failed.
Removed VST’s
Loaded in C11 failed.
Removed audio tracks
Loaded in C11 succeeded.

Load full 10.5 CPR project and removed audio
Loaded in C11 failed.
Removed the two group channels I had
Loaded in C11 succeded

SO my conclusion is that it’s the audio tracks that causes the crash.
MIDI only track projects seem to be OK

Hi,

What exactly do you mean by “failed”, please? What happens? Any error message?