Duplicate mac in host table ? why is this a problem

I was hunting down an access point when i was in the host table i tried to find it by just type contr. F.. and finding it on the page . and it should it but double and then i noticed that it was doubled and many other hosts were showing over more times. is there something wrong here ?
Screen Shot 2021-10-25 at 6.59.53 PM.png

yeah im nervous almost every device’s mac is showing up twice in the host table. I am worried this could cause a problem with the network getting busier..

Let’s start off with what hardware and firmware version?