Steps to reproduce:

1. Add a sound (default: local sound, manual trigger, not playing, looping, not muted). 
2. Play sound
3. Save project
4. Close project
5. Re-open project 

Expected behavior: The sound's play/pause state should be "playing".

Actual behavior: The sound's play/pause state is "paused".

Notes:

• The problem is independent of sound type.

After saving, before closing the project:

After re-opening the project again: