Alright, today I loaded up the Creation Kit to edit the 1 handed skill's perk tree. I went through the character menu and selected "Actor Values", Selected "One Handed", then clicked on the "Perk Tree" button. Lo and behold, without my modding there are no perks in the tree. The 0-25-50-75-100 bars are far shorter than any of their counterparts in the other perk trees, taking up a little over the amount of room needed to have the text containing those numbers, and being stuck at the left side of the screen. I checked the other perk trees to be sure, but no problems there - they are all absolutely fine, even the Smithing Skill Tree that I completely reworked, adding new perks, deleting existing ones and re-arranging everything. The One-Handed tree, however, has nothing.
Oh well, I decide, maybe the one handed tree was just deleted some how. I'll just refill it with some perks. I add perks in, however something odd happens. If I keep the perks snapped to Grid, the 0-25-50-75-100 bars expand and contract with the movement of my perks, as I'd expect them to. If I unsnap the perks from the grid, the bars reset to their default 'empty' position, despite the perks being there. Ignoring this I filled out the perk tree, hit Ok, then just to double check re-entered the perk tree. There were no perks there. It was as it had been when I first noticed something strange was up. I hit Ok to exit the Actor Values tab, and it tells me changes have been made to the One Handed skill, and asks if I'd like to keep them. I say no, as there is a chance in game the perk tree will still exist in its vanilla state with all the perks, and I don't want to risk them all being permanently deleted by some random bug. I have yet to test in game and see the results of any of this, as I don't have a save in Skyrim after deleting them all thanks to overbloating my old ones with mods I was trying, and I would prefer to finish my modding before starting a new save, just to be safe.

So, I've got a few questions. Well, 2 actually:
1. Does anyone know anything about this bug at all, or has experienced it themselves?
2. How do I fix it?

Thanks for any responses, 'cause this is kinda making it impossible to do anything with the 1-Handed Tree, and may have already broken it if I'm not lucky.