A1 mini banging

My A1 mini started making a “banging” noise when quick shifting locations. Suggestions as to what is happening? I’m trying to attach a short video of this as I’ve noted others have done but apparently mp4 cannot be uploaded. How can I do this?

The sound is like it is hitting a hard stop against a mechanical stop and it occurs after a fast acceleration across the printing object. I’ve watched closely and it goes nowhere near hard end of travel in any direction.