Headers But No Body When Select

[Danno321 23]

Running MacOS Big Sur  11.1.   When I come back to EN after awhile or on another Mac computer, I can see the note headers but when I select one it doesn't show the body.   If I start a new note, I get a blank note with no way to edit.  So I I have to restart the app to fix this.   This has happened many times and EN gives no clues as to what is happening.