there are exactly 0 mates in your top assembly. You can't save more time evaluating on mates...
This statistics was taken by large design review mode, so that the mate showing zero there.
… so it's more-or-less useless!
Please load your assembly as usual, and then try again, thanks.
Could you please check system & solid works setting Attached are document. Earlier I'm facing issue to rebuild assembly. May be this settings will helps.