Tried on Ubuntu and Fedora. Same thing happens when I open it after completing setup wizard. Here's the error message.
Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/openlp/core/ui/mainwindow.py", line 823, in paintEvent
self.preview_controller.preview_size_changed()
File "/usr/lib/python3.10/site-packages/openlp/core/ui/slidecontroller.py", line 619, in preview_size_changed
max_height = self.preview_frame.height() - self.grid.contentsMargins().top() * 2
AttributeError: 'PreviewController' object has no attribute 'grid'