Animated objects are not moving from A to B

I have 3 objects moving in tandem. I have keyframes with movements but when I render it out there are extra movements between keyframes. How can I fix this issue? The keyframe editor doesn’t show anything other than my X, Y, and Z movements…

It is possible that the default tweening (Cardinal spline) or the default Automatic easing is producing unwanted movement.

Maybe changing (for every keyframe) the Tweening settings to Linear and disabling Automatic easing can solve your problem.