Time axis does not update after changing sample frequency of data vector. It only updates after changing the Index vector.

Reproducible: Always

Steps to Reproduce:
1. Import a CSV file with multiple columns using the data wizard. In the configuration options select "Use Date/Time Interpretation" and "Index with Frequency".
2. Change the sample frequency of any vector except the Index vector (Data Manager > Right click vector > Edit > Configure... > change value of "Index with Frequency").
3. Note that the time axis does not change to reflect the change in sampling frequency.
4. (Optional) Repeat for as many vectors as are present in the CSVfile. The time axis does not update.
5. Change the sample frequency of the Index vector to match the other vectors. Note when you enter the configuration dialogue box the sample frequency will display the new value as expected. There is no need to change anything, just click Ok and Apply and the time axis is updated to the correct value. 
Actual Results:  
Time axis does not change

Expected Results:  
Time axis should update when editing the sample frequency