Qt Android: Graphical bug only on first launch of app

[Pinguinsan]

Hello all. I recently ported my Qt project to Android, and released it on the play store. Unfortunately, the first time the app is launched after installing, it looks terrible example1, example2. After closing the app the first time, this never appears again (unless the app is uninstalled and reinstalled). This is what it looks like after the first time (the intended graphics): example1, example2. If you want to try for yourself, it's located here. Thanks for taking the time to read my question.