I am on an iPhone XS, iOS 12.4.1 and I think the most up to date version of MyColony.
When I try to open up my saved game the load screen comes up and just spins for a long time. I haven’t timed it out, but I’d guess up to five minutes. It is an XL map, but I’ve got just 2000 colonists, and no excess of buildings, and I don’t think there’s too many Rovers. Just not sure what my problem might be.
On the left hand side of the screen, pull out the options had and click on the encyclopedia button, this works for me