I currently use SmartThings in my job and haven’t had an issue until a few days ago. I mainly use the iPhone app for SmartThings (Classic).
As of a few days ago, I can’t make modifications to SmartApps that are attached to my devices. When I go to My Home, then SmartApps, and try to select 1 of the SmartApps it gives me a ‘Error saving Page’ when trying to get into that SmartApp. This happens on all of my SmartApps.
When I am logged into Smartthings to do Live Logging, it gives no details.
I can go to the Automation tab in the iOS app and edit SmartApps from there. I’ve also power cycled my Hub, just to make sure.