After some testing I found I can look around up to one point, if I dont look at that point I can go on working, importing, moving entities and running test scripts, so I believe the problem has to do with a model somewhere on the domain.
Something in a mesh, Judas suggested Ngons, this is possible because I believe I have some Ngons in my builds, like the ends of cylinders etc.
If I can stay stable enough to remove potential offending objects I will get a definitive result in that aspect.
I have had a few entities go bad on me, they rez then everything goes red or green and the entity is still sitting there and I cant click it, and shows up on the list as “Unknown” and cant delete it, I dont know what to do about those ones.
I dont think there is anything wrong with the interface, I can go to Judas’s “shop” and bounce around and spin and never crash, in my experience that proves the interface stable.