0$=Genre$3774 isn't a valid object

[stefano_mbp]

Fyi ... using Lumin app On iOS device it happens when I “resume” the app after a library update.
Going back to the “root” the cache is automatically refreshed.
I think it cannot be different as when you “resume” the app it try to display the last choice selected.
Never happens if I leave the app in background after returning to the root and resume it after a library update