We are aware of he reported behavior and it is already logged internally for a further investigation. I have just made a public item for it so you can track its progress and vote in order to increase its priority here: The Crop box in the ImageEditor isn't resized correctly when the left corners are dragged
. Unfortunately there is no any workaround I can suggest you for the moment, but I have contacted our developers in order to increase the item's priority so they will look at it sooner.
Please, excuse us for the inconveniences caused.
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