Strange values in db scale on panadapter in v1.3

I have noticed in 1.3 but not any previous version that if I change about the scale of the panadapter by using the mouse or band change or even preamp on and off occasionally this appears mostly between the 80s and 100s. 

I cannot manually produce this and I am afraid cannot provide steps but a picture tells a thousand words - so here goes! Notice the random '96' in this example. Resetting the view or scale clears this - even if '96' was not shown on the previous view.

I will attempt to replicate steps needed to create this.

73 Steve