Here are a Carbide Create file and the nc code created from it that showed this behavior for me:
Fraestisch.c2d (2.6 KB)
Fraestisch.nc (25.3 KB)
They where created with Carbide Create 307 and processed with Carbide Motion 3.0.366 on a Windows 10 Home 1703 64-bit system with German locale. All programs use metric.
If I load the .nc file in Carbide Motion and run it, it starts and after a few seconds the progress graphic and line number shown are stuck at usually 5% or line ~1000 while the actual CNC happily continues to execute the job to the end - I just don’t see how long that will be. The numbers for X, Y and Z position are updated correctly.