Server Version#: 1.21.0.3711
Player Version#: X
With the latest version; if you select Scan Library Files for a specific library the manually set Title value that is locked is still wiped out.
For example; I spent hours setting the proper titles on my movie library. I executed Scan Library Files and it seems any title that I manually set and doesn’t have found meta data from before are changed back.
I verified this again by double checking that the lock icon is golden/highlighted and tried again. Error repeated.