JCollum,
It's strange. Please try the following solutions:
Solution 1. Set Editor.EncodeHiddenValue Property to false.
Editor.EncodeHiddenValue Property
By default Cute Editor will encode the value in the Hidden field automatically. You can turn it off by setting this property to "false". If this property is set to false, ValidateRequest="false" in the page directive is required.
Solution 2. Upgrade to the version 4.5.
It's a free upgrade.
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