The latest update 1.2.8 has a bug described as:
"resource collection objective un-completable":
https://steamcommunity.com/app/718650/discussions/0/1643178512739944841/
This was a new bug that affected all missions that have a resource counter to collect in goals. Paradoxically, this issue comes from the macOS code that has been integrated with the latest update.
Once again, we apologize for this and thank you for your prompt feedback!