I found a work around in this thread!: What is an actual working method to get page height to dynamically match visible content? You’re my hero, @fayewatson!! 
Had been trying to solve this for ages!
Setting aaaall the groups to “floating groups > float nothing” worked for me apart from the first group (“splash screen”)! Use on mobile.
Any help please?
Feel free to play around with this. It’s a copy from the main app.
https://whowhocopy.bubbleapps.io/version-test/index/sample:user?debug_mode=true
Thank you!!