Yup just logged mine on and everything is reset to zero, power ups its all been reset other than a reactor full of vents I got nothing about a weeks worth of time gone. This is a sad event, I think until I can either have a save file that the server can't eat with an update or its stable and not erasing stuff I'm taking a break. Tho I'm still glad to see its constant attention.
I wouldn't mind seeing the reactor start off small say 5X5 grid and let us buy new blocks for new parts 1 at a time til we are at the current max blocks or greater, tho letting us decide the shape of the reactor also. Some of us OCD folks like perfect squares while others might like an octagon. Letting players define the final shape will lead to more diverse builds I'd like to hope.
Coolant tanks are so highly ineffective because exchangers try to balance heat with them and the vents that your trying to get the heat out to. This means until coolant tanks are 75 to 85% full the exchangers and vents are almost never working near full capacity. Changing exchangers to only draw from coolant tanks rather than try to balance with them would be a nice touch.
 "Reactor Incremental"){kind=icon}