seotools 7.0.11, win7x64
Look at the following screenshot:
- In a1-a3 are three keywords, a1 and a3 with search volume, a2 - without. Firstly we test the keyword one after one: the first has search volume data, the second hasn't, the third has it again.
- Now we test the list of the first and third keyword (a1 and a3, those with keyword data) - the data we get are correct, exactly as in Keyword Planner GUI.
- Then we test all three keywords: the first with SV, the second without and the third with sv: the results is weird. The first keyword with SV gets correct data, the second keyword without search volume gets the data of the third keyword, the third keyword disappears.