Originally Posted by DarthJango/Weasley
You can't upgrade the saber, well, when i tried it removed it from my inventory
have already tried these, but there's always a chance that you missed it completely:
1. Try adding a new line to the upcrystal.2da and/or upgrade.2da.
2. Try opening the .uti for the light saber in KT, go to the properties tab, and copy and paste every row from a vanilla saber.