Client: Win10
Version: 0.50
Attached save file.
I'm pretty sure this is due to large crystalline formations. If my storage for crystalline is full, the game runs slow but playable. Once I use up any crystalline and they go to harvest more, the game locks up.
I would go and delete some crystalline but it would take a very long time one tile at a time.
My YouTube tutorial series: https://www.youtube.com/watch?v=Tfw_-RB6D-Q&list=PLHw_EJXYsdHgSUAzwqvtfgpoBDm16flcP