Need some help when I’m braking and indicating at the same time the indicator goes off but it’s perfectly fine once you take your foot off the brake pedal any ideas ???

Check for a bad earth on rear cluster, is it only one side that doesn't work?

 

Thanks AG Falco

Yeah just the one side that’s not working

 

thanks  X55MGT

Silly LED bulbs can mess with the control unit.

@X55MGT - Well, my first thought was also "bad earth", and my second was "LED bulbs".