external drives on my MacBook Air are not mounting without restarting after 10.15.6 update

My external drives on my MacBook Air are not mounting without restarting after 10.15.6 update. They are all plugged into a Belkin Thunderbolt 3 Dock Pro. The power works, but none of the peripherals (including a usb universal connector for a mouse). If I restart the computer, the devices show up. This was not the case prior to the update.

The scenario before the update, was if I plugged the dock into the computer, all of the peripheral devices became available.