It happens to all my ships with or without warp fuel.
I do all my warping with my large fighter, & it flames.
It even happened to my Hauler the other day, too. 
Same for me, too. Which was my above fighter.
But it does also happen to my other ships, too.
Usually it’s just 1 ship, sometimes though it’s 2.
But then again, I did claim 2 crashed starships.
My ships combust on load regardless of main ship, and the main one combusts, too.
And I could be wrong, but I’ve noticed that I seem to only see this occur when reloading or 1st entering the game when on my freighter. I don’t think it occurs when I reload or 1st enter the game when on a planet.
And so when I then fly to my freighter, all seems to be peachy.
Well, except for that time…
I’ve been doing a 
crazy amount of cooking in my freighter base, so all my inventories are bursting with food - and so I’ve been off to milk, and gather eggs, and plants, and hunting creatures for their meat, and well - my freighter probably smells really good. 
