Have just come across a particularly strange problem with a small assembly in one of our larger design files.
When opening the top level assembly I noticed that a small bracket and card guide assembly was not displaying despite all parts being set to visible.
In the feature tree for the assembly I expanded the sub assembly in question to find that it no longer contained any parts:
Moving on from this I navigated to the assembly within windows explorer and opened the file.
The assembly displays in Solidworks for a nano second then all parts vanish and the feature tree is empty:
Is there any technical explanation for how this has happened and how/if it can be resolved?
--I'm ruling out the files being deleted as the assembly was last saved over a year ago and am assuming that if the files had been deleted they wouldn't briefly display when opening the file.--