[Mobhack]

Lets see - you press the "commit changes" button, or F12 (same thing). Your changes are now commuted to the OB copy in RAM.

If you think the OOB is good, then you need to replace the copy on the disk. You do that by saving the RAM edited copy, using the load/save tab. Select the OOB, if nt already selected, and then press the save button. Now your edited version will overwrite the disk copy. (Conversely if you think you have made a total hash of your edits, just reload the original unchanged from disk, and restart).

I'll bet you did not save the working copy in RAM to disk. If so, your edits are lost.