That's expected. When you change tuning, your strings are pitched differently, so the same chord needs different finger positions on the neck. Fretscape recalculates every shape for your new tuning, which is why the diagrams look unfamiliar.
Same chord, different shapes
The chord itself hasn't changed — an Am is still an Am, with the same notes. What changes is where those notes fall on a differently-tuned neck. So the grips you've memorised in Standard won't match, and Fretscape shows you the ones that do.
A few things you'll notice after switching tuning:
- The string names change. The letters under each diagram show your current tuning — in Drop D the lowest string reads
Dinstead ofE. - The shapes change. Familiar open shapes are replaced with the fingerings that produce the same chord in the new tuning.
- The number of shapes can change. Some chords sit more comfortably in a given tuning than others, so the count of results goes up or down.
Getting back to what you know
If the shapes look wrong and you didn't mean to change tuning, open Settings (the cog icon in the floating toolbar at the bottom of the app), set Tuning back to Standard — E A D G B E, and press Save Changes. See how to change your tuning.
The same thing happens when you turn on the capo — the shapes are recalculated for the capo position.