Stuck in Calc Mode

[stratatonic]

Anyone else experiencing this?
Sometimes when I crop a sample in Kong, Mimic etc, R 12 goes into Calc Mode forever. It is using up resources trying to do, something, and won't finish calc.
I have to close out Reason session. I'm trying to recreate the scenarios in which it happens, but no luck yet, other than, so far, the original file to be cropped was maybe a over a minute long. But still, I shouldn't have to shut Reason down.
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stuck in calc.png (29.41 KiB) Viewed 180 times

[PhillipOrdonez]

If possible, disable stretch.

This tends to happen to me with very long files (over 30 minutes long) that I start editing and moving before calc ends and it gets the system slower and slower the longer I go without disabling stretch. I've waited well over 20 minutes for calculations to take place in order to be able to render files when I haven't disabled it.

Another thing that helps is bouncing to new recordings (context menu) and deleting unused files (context menu).