Galactic Colonies Issue

I'm playing Galactic Colonies on iOS and running into issues building a couple crystal extractors on the third desert planet. It says crystals are required in the region even though I'm trying to build on a crystal section of the map. Does this game have serious bugs like this that prevent you from playing or is there something obvious I'm missing? If it's this buggy, this is very disappointing.

I found I can build a crystal extractor after closing the app and waiting a while, but this seems to be very inconsistent behavior.