Software Versions Python: 3.8 OS: MacOS 10.14.6 (Mojave) Kivy: 2.0.0 Kivy installation method: pip The UI seems to be freezed if you run export_to_png ( _filename_ ) on a ScrollView widget and it ...

File "C:\py278_x64\Python\lib\site-packages\kivy\uix\scrollview.py", line 680, in on_scroll_move if self.dispatch_children('on_scroll_move', touch): File "kivy\_event.pyx", line 710, in ...

Kivy is intended for use with Python and has many underpinning functions and classes written using C, so it’s much faster than a UI framework that relies solely on Python.