message: If no indices are present, the max index is numVerts - 1 (0 indexed)
diff: @@ -179,7 +179,7 @@ void HighlightCache::CacheHighlightingData(uint32_t eventID, const MeshDisplay &
  stage = cfg.type;
  uint32_t bytesize = cfg.position.idxByteWidth;
  - uint64_t maxIndex = cfg.position.numVerts;
  + uint64_t maxIndex = cfg.position.numVerts - 1;
  if(cfg.position.idxByteWidth == 0 || stage == MeshDataStage::GSOut)
  {
  