The next time you use the Offset command, check the Inspector Bar. I have noticed, sometimes, that the function starts up with a value in the Offset that is locked (a locked padlock is displayed immediately above the entry gadget) . If so, you will want to unlock and try from there.
Jeff
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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
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