Yes.
Here attached a sample file (but i don't think it will solve the issue).
1. Open SH3D 4.4 installer version.
2. Loaded a file from resent/history.
3. Just rotated scene (frame skipping bug)
4. Changed time in photorenderer.
5. Saved the rendered image.
6. SH3D closed without saving.
7. 5 minute later open Task manager and it shows sh3d running background.(Runs in background bug) [:-&]