I'm not using SkyPatcher, if that's what you mean by repeating the steps. But I do have constant crashing.
And the form id 0x1C003F66 doesn't appear consistently. Where it had been is filled with other random forms.
But it seems that I'm having the same error, referencing 0x000..., even with dyndolod disabled, though it was tested on an existing save and have not yet on a new save. So now I think it's a problem on my end.
But here's the new crash log anyway, in case this helps.
https://pastebin.com/NrQmUAf1
and thank you for responding.