Operating system: OS X High Sierra
Graphics card: AMD Radeon R9 280x 3GB
Short description of error
Used revert to go back to my last saved state. Upon reverting, things were not saved from last save, and objects had been moved and rotated. The scene uses Mirror Modifier across X axis. I correct the models placement and rotation put everything back, save and saved a copy. Both opened in the same old incorrect state. I saved the file to USB and opened on my Windows 10 (v.1903) and the files had the same incorrect placement and rotation. Corrected placement and save, saved a new copy on Windows machine. Open both files, same thing, nothing was saved. Copied files, pasted to a brand new scene, correct placement, save. Doesn't save the changes.
Exact steps for others to reproduce the error
The only thing I can verify and replicate every time is, save the corrected scene as OBJ or DAE and open those files, same issue, nothing saved. I have attached the scene file and system info. Please note, the system info will reference the latest Alpha, I wanted to see if the issue persisted in the latest build, it does. While on Windows machine, I even tried copying the contents of the scene and pasted to a new doc. Saved it, and when opening, everything was reverted back to the incorrect positions. The attached file is in the state that it always reverts to. Please try moving the collection "Monster" to where the two mirrored cubes are and rotate and save. Then reopen scene. For me, nothing will save. Tried opening and working with the autosaved versions, exact same thing.