Turrets should keep on firing when you go into the debug cam. Or it could be that the person making the Screenie and the person owning the ship and shooting are not the same.I've seen screenies of weapons firing in Cam mode. How does this happen?
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I'm in the same boat as you OP, dunno why it doesn't happen for some. In normal Flight as soon as I go debug camera the ship stops, very annoying when I wanna make some nice pic with the Engine going and then instead the front thrusters are stopping my ship. In SC my ship will keep going when I go into debug Camera, but it will stop as soon as I leave it.
Is keys you use to enter cam mode used to anything else like throttle to 0 or something like that? On srv space bar is handbrake so srv stop when you enter camera mode because you toggle brakes same time. I use joystick so maybe its some thing to do that i don't have throttle as button but on axis (slider)? Like if you have button for throttle your ship auto zero speed after jump to other star (so you can't hit star), but if you have throttle on axis (slider) it doesn't auto zero.