Various lights not working inc diagonal indicators

Hi,

I have a strange intermittent fault on various lights.

Indicators - FNS OK  - FOS not working - RNS not working - ROS OK

Side & tail lights - FNS not woking - FOS OK - RNS 3 0f 4 bulbs OK - ROS 1 of 4 bulbs OK

Dip beam - NS OK - OS not working

Full beam - NS OK - OS not working

Fog light - FNS OK - FOS not working

Rear fog - Neither working

Brake lights - NS not working - OS OK - high level bank OK

Reverse light - NS OK = OS not working.

The fault first occurred Sat morning, but cleared on a drive out later the  day. The fault then reoccurred on Sunday as is currently still there.

A couple of other bits of info:-

The 'bulb out' warning light on dash has intermittently been coming on but no bulbs failed.

Tow bar fitted but via scotchblocks into rear loom.

No problem with lights since purchasing car 8 moths ago.

Anyone had anything similar?