I'll direct you to the team that can best assist you in resolving this issue as quickly as possible, kelsey26.
Currently, there are no reports of published schedules disappearing overnight. However, since this issue has occurred multiple times, I encourage you to contact our Live Support team to investigate any underlying issues specific to your account.
Here's how:
- Navigate to the Help icon.
- Go to the Search tab and click Contact Us.

- Pick a topic to connect with the right expert.

- Choose how would you like to connect with an expert.

Also, please be aware of their support hours for your convenience when connecting with the right expert.
I'm sharing these resources to enhance your time management experience in QuickBooks Online and QuickBooks Time:
The Community is always available to assist with managing timesheets and scheduling employee shifts. If you have any follow-up questions, please feel free to reply to this thread.