Nope…
I believe the issue is that you joined the device prior to 8/16/2020 and the only way you’re going to solve the problem with the child devices not working in the new mobile app is to delete them and save the settings so that when they’re re-created they won’t have a componentName or componentLabel.
Update: That’s based on the assumption that you’re getting a network error when you attempt to control the child devices in the new mobile app…