After updating firmware 3.1.0 sync manager it doesn't sync anything

Engine DJ Software Engine DJ (Mac & PC)
42

Lot of time I do the following:

If use external SSD: (nowadays I do this, as it is more easy to keep synced everything)

  1. Add new songs and create new playlist on PC
  2. Export them to an external drive (where have no Engine Library before)
  3. Connect it to gear and play

If use internal SSD:

  1. Add new songs and create new playlist on PC
  2. Export them to an external drive (where have no Engine Library before)
  3. Exit from Engine DJ on PC
  4. Delete the entire Engine Library from PC
  5. Copy the Engine Library back to PC
  6. Exit from Engine DJ
  7. Connect to Gear and delete there everything
  8. Copy the Engine Library to Gear

After this it can syncronize vice-versa. Maybe the ‘version’ file have some different info.