title: Access VBA cascading comboboxes return blank value when adding new data in subform
body: <p>Firstly I apologise for my poor English, and thanks to you all in advance for the help I will receive.</p>
  
  <p>In a subform I have created some cascading comboboxes. The master is called 'Species' and the slave is called 'Quality'. They are both included in a continuous subform with some other data fields.</p>
  
  <p>While in the process to populate the 2nd, 3rd, etc records in the subform, the 'Quality' field (cbox slave) becomes blank.
  I tried to remove the 'requery' instruction (unsuccessfully) from the VBA code.</p>
  
  <p>Do you have any idea why it happens and how I can fix it? 
  Your support is much, much appreciated.
  Please feel free to ask me for further details if you are interested in my issue.</p>
  
  <p>Thanks!</p>