This is a new behavior which I hope is not intended:
When I write an annotation and open another resource to consult it, the note I was writing (not the note file) is compacted when I return to the annotation window. This is annoying because it usually means I have to find it again in the list, re-open the note I was writing and find the spot where I was before I can resume writing it. It is counter-productive when much research goes into the writing of annotations.
This will be fixed in Beta 6.