I've seen a similar problem with the data tab filtering... If you apply an expensive filter, it is by default remembered and will be applied each time you open the tab.
Solution seems to be either:
- Disabling the option to remember: Preferences > Editor configuration > [ ] Reuse previous configuration settings on restart.
- Use the "Clear data tab filter" context menu option.
Neither seem to have any effect on the sorting of the data tab. If I apply a very expensive sort, the app locks up and I force quit. Now I'm stuck, because each time I open the data tab in the future for that table the sort is applied.
I'd think that disabling "Reuse previous configuration settings on restart" would apply to sorting as well, but it does not.
This is on 9.4.0.5142 portable.