Not sure if this is the right place to post this but this is the issue…
Using UE4.24.1 I imported a Solidworks assembly and some of the parts didn’t come through (fasteners etc.). Tried importing again individual parts and nothing came through. Tried making a new part again in Solidworks 2020 and importing that… still nothing came through. Made the same part in Solidworks 2019 and imported part with no issue.
If there is a way to fix this would be great as when it works it works great for importing complex assemblies. Solidworks doesn’t allow opening 2020 files in 2019 so we are a bit stuck at the moment. Will try exporting to a different format then import that, but will add an extra step.