Sandstone not usable / displayed in base resources [solved]

When you create a pipe or something of that nature, you have an option to select the material you use to build it. It defaults to obsidian, but sandstone can be used as well. I just discovered this today
In the future, I'd say list something like this as a suggestion, not a bug.

Not any useful reply yet? If someone missed it, look at right top corner my base resouces says 0 sandstone

Edited February 27, 2017 by AmUnRA

Could you upload the save file? Or reloading solves the issue?

reloading doesnt help. here is the save https://drive.google.com/open?id=0Bzy6SdH0tzf0VmdHU0NORzBxLU0

You have more building task queued than sandstone you have, so at load it shows 0 sandstone because its locked to buildings. The duplicants still can use it to build things just you cant queue new build order until you cancel some or you get more sandstone.

thank you sir, you saved my favorite save game!