Partner makes incomplete call.....

[Thurman15]

In the OP, and its follow up, it reads that the runner walked to 2B then came off the bag and was called out for a LBR violation, as F1 had the ball in the circle. Some of the other posts here state that that was a correct call.

How could the runner be out for a LBR violation by coming off the bag if the runner did not stop or reverse direction? Coming off the bag does not constitute a LBR violation at the end of a play, even if an F1 has the ball in the circle, does it? What if the runner continued to the next base? How is any of that a LBR violation? (until runner stops or retreats)

I see this same as a BR hitting a two-base hit, ball is returned to F1 in circle as BR walks the last couple of steps to 2B and does not stop, but keeps walking toward 3B. That's not a LBR violation either, is it?