After digging deep into the caves, the teather lines connection is not visible anymore.
I have included my save file (in zip format) and a screen shot.
System Spec:
Windows 10 Pro 64-bit
Intel Core i7 920 @ 2.67GHz
Corsair 12.0GB Triple-Channel DDR3 @ 1600MHz
ASUSTeK P6T (LGA1366)
1023MB NVIDIA GeForce GTX 550 Ti (EVGA)
If you need more information don't hesitate to contact me.
Continue your good work and congratulation to all the team for this excellent game.
p.s. After restarting the game and removing the last teather i placed and putting a new one , the connection lines where visible again.
Save File: Astro.zip