Issue description
I build a lot with planning mode before committing to build. I have my train track build and placed a crossing over it (in planning mode) and the normal tracks no longer exist until I build the crossing. Also I think any resources spend on my tracks are gone. Also when I delete the planned crossing the normal track that was previously under it is gone.
Reproduction steps

- before buildung the corssing

- crossing placed in planning mode

- after removing the (planning mode) crossing

- train cant cross the crossing even if there where tracks before
Game version and build number
Update 3 | v0.7.8 (b481)
Operating system
Windows