I've developed a GUI application using CustomTkinter that works perfectly on my development machine, but when I convert it to an EXE using PyInstaller, some buttons and UI elements don't appear on certain devices. The strange part is that it works fine on my development PC only. my github repo: https://github.com/subhradip32/START I have used the pyinstaller to package the main.py into the .exe file. But after installing the .msi release of the package shows no problem in my pc. But shared with others people have raised issue of invisible buttons in auth page. I am not able to understand what have caused such problems in the software. Continue reading...