AngularJS + Bryntum Grid 4.7
See the image below. I grouped 4 rows into two, store data has four rows as you see, but the storage.values got 8 rows including undefined rows. When I export it, you probably get the values from store.storage.values , which then I get 8 rows from the exportCSV! including empty rows. I thought you have have fixed it already but it's not been fixed on V.4.7.
Another problem, you know when you update something by store.add(row), you can't update it if you collapsed the table after grouping them. I have to manually expand the table, then add to the store and manually collapse it. This is really inconvenient.
Can you reproduce the error and have a look at this and fix it asap please?