These are known issues and they will not be fixed, because they have little to no impact on the game and can easily be worked around.

Refer to the GitHub issue[github.com].

I had construction speed set to 1, placed a few new buildings to be constructed. Got bored waiting and ramped construction speed up to 100. The buildings were then pretty much instantly constructed, however they were flat like pancakes. Changes to roads or doing any bulldozing in the area seemed to "inflate" them back to normal shape and size.[/quoute]