Common reason for the error: The save path of the scene file was changed in the computer folder (the file was moved to another location, or the file name was modified), or the files in the scene folder were deleted, in the case of not saving the current scene file (maybe by accident).
Solution: Move the scene file back to the original path to save it, or copy the entire scene file (the entire folder where the .drs file is located) to another storage path, and then use D5 to reopen the scene.
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