Great info @James! I got a better sense of what you’re getting at.
Imported models have limited functionality in Arkio, for example you can’t modify individual surfaces like you would with native Arkio geometry. With imported models, the snapping system is orientated around the bounds of the model rather than individual cells. I think what is happening here is that tolerance for editing and moving something slightly is automatically snapping to the table.
One thing you could mess around with is changing your scale (using the grips) so you are at a smaller scale and then making the edits. Your scale is a factor in how we determine the movement tolerance.
Could you potentially share a screenshot when this is happening? Would love to see what is going on a bit more