Playing on the android version, but as the bug seems to be relatived to the card rather than the interface :
Myriad Landscape is boken since at least the last update, when I sacrifice the land, it list my complete deck as if I had no basic land available while I have lots of them.
The bug is systematic on all the decks that I tested with basic lands of various types.
Other similar effect like
Terramorphic Expanse still works without problem, so it's probably related to the restriction of having the two basic lands be of the same type for
Myriad Landscape .
As it worked in previous versions, I suspect that the bug was probably introduced while patching the card to recognize the
Wastes as basic lands.