I have similar issue, but only after the update.... Last night my game was good as of 10:34. Posted in another thread as well but I am hoping they can restore... It's odd that inventory items are ok still.
Assuming same issue.... I can load a save and all items in my inventory are still there, but all structures and game progress appears to be deleted. sucks, really was enjoying but I won't put anymore time in to do all of that over again.
Not that another person stating helps, but I'm having same problem... I've also recycled and rebuilt my previous dew collectors and mushrooms as well as built new ones and it seems like I get the first collection / growth and then they are done.