I submitted a bug report, support team accepted the bug and are looking into it.
Out of curiosity, which operating system did you use when you got a blank screen?
Interesting, for me they are not working neither in web view or bubble go on ios. On which mobile device and operating system you have bubble go installed?
Go to support page: Bubble Support Center and start a chat with the bot in the bottom right corner, if you have a bug to report, it will ask for details and submit a bug report, you will be contacted later by support.
For those struggling with this like me, bubble support found the following:
I set the view to scrollable and set the webview height to 100%, these two can not work together on iOS.
My solution was to set the view to non scrollable and set the height of webview to 100%. Although this works for iOS i have problems on android with this setup, awaiting response on this one.