I have come across the Heljarchen hall doesn't appear/distant detail/birds and flocks bug, but with a twist.

Upon building the small section I noticed the house didn't appear, but not one to check the internet, i decided to start work on the main hall to see if it would improve things. It did, the small house became visible, except mfor the front door. I could walk through the walls from inside to out, but not from outside to inside. Please note that I am never leaving the world space when I do this. The only way to enter the interior of the small house is through the door connecting the unfinished main hall. When I leave the small house, I end up where I'm supposed to end up if everything was working properly. I have turned of the mods that were causing the trouble and have waited 96 in-game hours in an unrelated interior to see if it will reset. It has not and it appears the damage is done. To be honest, the only real problem seems to be the lack of a front door, though I don't know if there are more glitches and bugs that are caused by this conflict.

Heljarchen is the second house I'm building and since I don't want to lose all progress on the first (including all the phat loot inside), I was hoping for a console option: perhaps something that would let me reset the entire construction proces. I'm afraid that if I uninstall the mod and start again I lose all progress on, and loot in the first house.