Click "Export Points" -->‘ok’，no response

[gityeezy]

When I use the "Export Points" function to save a PLY file, selecting the file path in the pop-up window and clicking OK does not produce any response, and no content is saved.

[koide3]

Maybe you need to type the filename in the Name input box?

[koide3]

Please also try sudo apt install zenity kdialog.