How to display the right Title on add to home screen?

Hi, I used the ‘Conference’ template to start my app, but I want to call it something else. I’ve renamed the name. When you scan the QR code, the name is correct, but when you click ‘add to home screen’, the title still says ‘Conference’.

https://erlworkshop.glideapp.io

How can I update this?

The app name can take 12 hours to fully update.