i dont know i didnt have had this problem before and why did the 99999900 durability get removed? :T
well what i do:
refresh
edit
save edits
possible save game
[play, refresh several times for other edits]
save game, quit
reload
durability swapped around, sometimes a few items, sometimes more
i had to fix i had to fix weapon, bow, shield inventory today because everything got scrambled
if i just go for 65500 nothing happens after reloading game...
The game hasn't ever allowed you to use 9999999 as a value for durability, the max is 6553500 i think