The case of the disappearing rig

On the AREA forums, a user reported that when he tagged a rig and then applied a .motor Motion file, the rig ended up thousands of units away from the global origin. If you looked only in the viewport, it would be like the rig disappeared.

It turned out to be the Windows Regional Settings: another case where having the comma as a decimal separator and the period as the digit grouping symbol caused problems with numeric calculations.