[SOLVED] Links widget issues

For a while now I'd had issues with the links widget not showing up on either sidebar but - having been a little bit lazy (!) I was not fully up to date with the theme. It's raining today so everything is up to date and the links widget does not show up on either side bar. Other items seem to show up just fine. I'd be very grateful if anyone could point me towards where I might look to try and solve this?

TIA - Herby