Depending on your computer's processing power and the size of your data set, Kaleidoscope may take significant time to fully process a batch of files. The progress bar and "time remaining" figures are not always accurate. That being said, the best way to see if Kaleidoscope is frozen or still processing files is to use the Task Manager (PC), Activity Monitor (Mac), or another system monitoring tool. If Kaleidoscope is marked as unresponsive, then the program may need to be restarted. However, if Kaleidoscope's CPU usage is updating regularly, it is likely that it is still processing files.