An issue has been brought to my attention that missions can become blocked if an achievement fires while playing the GOG version of the game without the GOG galaxy client running. I have uploaded a patched build (1.0.13c).

If you are still experiencing this issue, please email wx3labs@gmail.com with your latest save.

Under Windows saves are in:
C:\Users\[USERNAME]\AppData\LocalLow\Wx3 Labs, LLC\Starcom Nexus\saves

Please include the most recent *.json and *_info.json files.

Sorry about the inconvenience.

- Kevin

thx for the ultra fast response and bugfixing!
now waiting for the not-that-fast gog team to provide the offline installer ...