A while back, I found and reported a bug with interface persistence in 0.8.1 which allowed you to break the game in various ways. Since upcoming changes (at the time) looked like they might fix the issue, I said I'd report back if I was able to break it again on a newer version.
Long story short, I ended up completely forgetting about the issue until a few days ago, when I managed to accidentally reproduce it again during the course of a normal game. I've done a bit of testing and it seems like the issue is still there, although I'm no longer seeing doubled credits (more like an extra 50% now, not sure what changed there).
This is the old thread, the details still apply:
http://fractalsoftworks.com/forum/index.php?topic=13421.msg226303#msg226303I've also made a video (watch in 1080p60) to try and show off the issue:
There's a little overlay thing in the top left that shows which keys I'm pressing, with what I think is a 100ms expiry on each shown key press. Keep an eye on the ship cost and my credits total -- I should have 56370 credits by the end of this, but end up with 60290 due to the ghost sale.
This was all done on an unmodded game with a fresh character. Some minor settings tweaks were in place, but I don't think they're related. I can provide the file if necessary.
Hope this helps track things down any! Let me know if you need any further details.
(and yes, 0.9 has been lovely once again -- rounding up my second of two consecutive 30-to-40-hour playthroughs now
)