HI TA ALL PATCH 10 PROTEUS MAXIMUS put them in a row of 10 CREATE A ZONE then dimmer full move them towards you ,after select the zone raise intensity you will see the fixtures lighting pavement with an intesity coloured by cyan!
This is due to the Capture Fixture model not going to full black when CMY is set all to 100%.
Even doing this inside Capture alone will create that result.