Everything is gone from Lightroom

[Pschlife]

Since the most recent upgrade when I log into lightroom I have nothing. All my photos, presets, brushes everything is gone. Anyone able to help with this? TIA

[greule]

Could it be that you opened up a different catalog with LrC? - Guido/ lr QE

[JohanElzenga]

Are you using Lightroom, or Lightroom Classic? If you are using Lightroom, then check that you are logged in with the correct Adobe ID. If you are using Lightroom Classic, then indeed you probably let Lightroom create a brand new catalog.