I migrated to the new app a couple weeks ago. I’ve since added a few more Caseta dimmers and want to update some scenes. Any time I try, I get a “NETWORK ERROR” try again later. I’m out of ideas how to fix this.
Please tell me it’s not that easy of a fix 
…I’ve been fuming about this for weeks. I’ll report back…
I just got a similar error while editing my scenes. Looking in the smartthings api graph, I see a device listed as “null (Removed)” in my scene. Any scene that has it can’t be updated. Also doesn’t seem to be any way to remove this device, since it doesn’t show up in the device list. Recreating the scene seems like the easiest way around it.