Hey there, I have a hub at home where I have been using CoRE and WebCoRE for years with great success.
I got a hub for my office. At first, I set it up as a separate location but then I found out that IFTTT and Google Home would not integrate with a second location. (BTW, this is terrible.) So I factory reset it and set it up on a separate account.
I went to install WebCoRE and I installed it fine and enabled OAuth. It shows up under my SmartApps in the IDE. However, it does not show up on the SmartThings Classic app.
One other thing. If I go to the IDE -> My Locations -> Installed SmartApps - it does not show up here. If I flip back over to SmartApps on the menu, they all show up there with Status Published and OAuth true.
Can anyone help diagnose this? Smartthings is practically useless without WebCoRE.