dimensions created as seperate objects

Hi,

I've had this problem with a number of drawings of mine. But it seems to be only drawing-specific.

When I create a new dimension using the DIMALIGNED command, the dimension is created, but as a number of different objects. The extension lines, leaders, and dimensions are all different objects, as if they had been exploded already. Any idea how to fix this problem?

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Image may be NSFW.
Clik here to view.