Issue with copybasepoint

I assume I unwittingly made a settings change. However, I am suddenly having an issue around copybasepoint. When I use ctrl+shift+c, I have begun experiencing an issue where the cursor moves around the point. I originally thought it was simply rotating, but it appears to be moving around the point in a 3D space, even though I am working in 2D. This is causing me extra effort to get things copied into another CAD, as it is pasting into it with an incorrect orientation, such as rotating 90 degrees. Any insight is appreciated.
Comments
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It would seem a coworker was able to find an old post regarding the same issue. I had apparently activated DUCS, and deactivating it resolved my issue.
Dynamic User Coordinate System (F6)
Activates a temporary, dynamic UCS that displays when the cursor hovers over a 3D solid’s face or a 2D entity.2