I have experienced this issue on multiple native apps - parts of the screen are missing when they are first loaded. They will show up randomly once an action is taken, like pressing a menu button. Once the page has been loaded the first time, elements display fine. But upon app relaunch random buttons, text, backgrounds go missing again.
I think this might be related to using gradients, but I’m not sure.
I know mobile is in early development, and I filed a bug report about this some time ago, but I believe the Bubble team plans to handle these issues at a later date.
Has anybody experienced similar issues, if so, have you discovered any workarounds?