Sorry for the inconvenient but the v0.8 has a bug on limestone heap. Instead limestone has a heap with tailings.
If you dont want start a new save game. Create a new save game with version v0.8.1 and then go to the save folder and copy the file terrainDetailHeight_density.gdm and put on your current save folder. Then start you current save game with v0.8.1.
ChangeLog v0.8.1:
- Fixed the bug on heap with Limestone, instead have a heap with tailings.
ChangeLog 0.8:
- Seasons Ready
- Addon Straw Harvest support
- More filltypes tip on the ground
- New filltype clay (to produce bricks)
- Possibility dig lithiumore
- Possibility create asphalt roads
- Add Crane on marble production mine to load marble sheets plallets
Attention: To play with all news I recommend start a new save game. If you want continue a old save from v0.7 of v0.7.1 you need make 3 changes on the save game files. I can explain how do on my discord channel: https://discord.gg/2ScJWXK