Dragging a Step file into SW:
I've never had this problem. I have the same system settings as my users on the network and I am the only one who receives this message.
I abhor STP file formats.
I recently updated the templates and moved the old teomplates. SW automagically wants to use the default templates for imported files.
That's what the error was.
Try open STEP in SW.
As usually it behave differently.
I have a few files that fail in drag and drop but works when open in SW.
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