Hi I haven't been able to reproduce this issue, so I'm not sure what's going on.
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Do the item properties appear if you use the Items sidebar menu (the sack icon)? They may look a bit different because it uses a different window type to display things from that menu (it's like an inventory item rather than the a library item).
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And feel free to post any issues you may have like this, as the community can find issues more quickly than I ever could, given the number of things that are in the libraries.