After opening several Csv files there is a bug when you close a chart with the cross button at the top right corner.
The app freezes and does not respond, and you have to restart the program.
Thus, for the moment, please don't try to close a chart. You can still switch between opened charts with the ComboBox or open new files with the "Import CSV" button (up to about 40).
I will try to fix this problem in a future build.
- Bug when closing charts fixed, will be available in build 217
Julien Moog