Any referees here?

Question about taking the ball out of bounds. After a basket the other team can run the baseline to inbound the ball. ALL other situations is a spot. Player can only move his pivot foot. Correct? Seen twice now that on a spot throw in, the player chopped both feet and then actually took 2 steps. Should have been traveling. Correct? Thanks

Basically, yes.  When inbounding the ball the inbounder has a 3' area in which he can move. He can jump and move his feet, but move outside the 3' imaginary semi-circle it is a simple violation (not traveling per se) ....thus a turnover.

So if that's what happened, the sideline ref either missed it or employed more latitude than dictated by the rules.

PS.  I haven't officiated since the early 90's  (15 yrs a ref) but to my knowledge that rule has not changed, under NABC rules.  FIBA (international) rules for inbounding differ only slightly.