Lego City Undercover has been updated to 1.0.2 : r/NintendoSwitch
: General bug fixes were implemented to reduce the frequency of software crashes and freezing that affected the initial release. Improved Frame Rates LEGO CITY Undercover Switch NSP UPDATE
A clean, scene-released NSP (from groups like SUXXORS or Venom) should have an MD5 of 4F3A8C1E9B5D7F2A0C6E8B3F9A1D5C7E for v1.0.1 USA. Always scan with Switch Army Knife (SAK) before installing. Lego City Undercover has been updated to 1
Security & legality considerations