Transparent Bridge MikroTik and Ubiquiti

Hello i need some advice about my network configuration. I have network using MikroTik and Ubiquiti like in the picture.

A problem is i can ping all Ubiquiti Radio from PC (0.99) without RTO, but if i’m ping MikroTik in the site i found intermittent, is this ARP Table problem ?
kmp.jpg
to_radio.jpg
to_mikrotik.jpg

  • Ubiquiti 5AC with AirOS 8 WDS default enabled *