New Setup. Slippage at back right

So excited to have my Pro setup! There is some issue with the table when it goes to the back right. Any advice on what may be going wrong? Here is a video for your ammusement. Thank you!

The clicking noise makes me wonder if the lead nut is broken.Is the clicking coming from the motor side or the right side?

When you set the 0,0 in the video was it all the way to the stops in the lower left? I’m also wondering what the X and Y lead screws do when that occurs? Are they whipping or bouncing? Maybe a video looking down the length of those? It definitely should not do that.