Wireless missing from My OSMC on RPI 3B+ using June 2020 image

I’ve done a fresh install using the June 2020 disk image yesterday and have been setting it up using ethernet cable.

I want to move it over to Wifi and have gone into My OSMC > Network as usual, however, the Wireless option on the left hand side is missing? It only offers Wired, Bluetooth or MySQL.

What am I doing wrong?

Are you using a external Wifi Dongle?

No external dongle. Trying to use the built-in one.

That should still work.
What does connmanctl -> technologies say?

osmc@osmc-concept:~$ connmanctl
Error getting VPN connections: Unit connman-vpn.service not found.connmanctl> technologies
  Name = Wired
  Type = ethernet
  Powered = True
  Connected = True
  Tethering = False
  Name = Bluetooth
  Type = bluetooth
  Powered = False
  Connected = False
  Tethering = False
connmanctl> quit

Something definitely not right.
Suggest to upload logs grab-logs -A and share the URL

Does it show up in Raspbian?

The short answer is no the wlan0 interface didn’t show up there either. In raspi-config it stated “No wireless interface found” when trying to configure WLAN

However, it prompted me to further dig and I removed the microSD card overclock line (overclock microSD guide) from config.txt and rebooted and it now works. In My OSMC the Wireless option is now available.

Thank you all for your assistance.