LE 9.5 Suddenly no sound or in random order

I have projects that include audio and midi tracks. When done working I close the project and reopen over several days no issues.

Suddenly and randomly I open the project with total visibility to tracks, but it plays back random midi audio out of sync and NO analog audio.

Also, at times I hear nothing, but then I click the loop button and get random midi with no analog sound. I enter analog track in edit mode and hit play and I can hear the individual track no issue.

It’s almost as if the project loses all the mapping to the audio files and midi notes. This has happened to several projects and I lose hours of recording. Although awesome functionality Cubase just seems to crush creativity with the heavy weight of unreliability.