[Fixed] Strange "ScriptableSingleton" error after update.

Does anyone know what is happening after last update?

This keeps showing to me. Also, I'm using the new UI Beta, with Unity 2022.

ScriptableSingleton already exists. Did you query the singleton in a constructor?
UnityEditor.ScriptableSingleton`1<Packages.Rider.Editor.RiderScriptEditorPersistedState>:.ctor ()
Packages.Rider.Editor.RiderScriptEditorPersistedState:.ctor ()