Just got a zone where the interceptors didn't spawn (even though it still said the voice line) and I was able to mix it up in there easily until I ran out of ammo, synthed a reload for each multicannon, ran out again, finally decided to burn off the caustic damage I'd picked up at the start of the fight, sat there on the edge throwing fighters at the fray until I ran out of those too, and eventually cruised off because the scenario progress bar had been full for ages but wasn't registering a victory. Ho hum.
Once again, the difficulty spike between scouts and interceptors for solo players is massive. I'd love to have something in between.
Sounds like a funny bug there, I've also noticed something similar happening at normal conflict zones, where if you rout the enemy capital ship all victory progress stops and it goes on forever. Indeed scouts are far easier than interceptors... especially since two interceptors spawn and the AI aren't programmed to attack the hearts lol. Here's hoping this will all be fixed soon