There is nothing that would have caused only one single skill to be lost. The glitches that occurred affected core skills with 0 points in them at...
The items in the last 4 slots of your inventory were moved to Frederick, who is not coded yet but should be in the future to allow people to...
Are your files up to date as of May 20th? What NX equips are you wearing, and what skills are you using?
https://en.wikipedia.org/wiki/FilterKeys This maybe?
Though my NL is my main account and always will be, my mage is the current character I'm playing the most while leeching my eventual-bucc.
Added an alternate download straight from my dropbox, already unzipped, in case someone is having issues with the zipped file.
Broken skills will be fixed in time, SP resets are only for people who have allocated their SP incorrectly after the first reset.
Separate names with a comma.
