Is using Adobe Illustrator CS6, the same case happen even after I restart my computer and just open Illustrator to try it (without running other apps). I just type the wording, then create outline, and create offset path, then this situation happen. These steps are just same as what I’ve done usually.
Processor: Intel(R) Core (TM)i5-2300CPU@ 2.80ghZ
RAM: 4.00GB
System Type: 64-bit OS