We are sorry for the trouble. As described the filled form fields are printing blank.
++ Adding to the discussion
Is this a behavior with a particular PDF form or with all the PDFs forms? Please try with a different PDF form and check. If its a file specific issue please share the file with us for testing.
There are couple of things that we can try and see if that helps.
1. Print the PDF form as an image. Open the Form > Go to Print > Advanced > Print as Image and check.
2. Select 'Documents and Markups' in the print window under comments and form and then try to print , as shown below:
3. Also, make sure that the fields are not set to no colour. Open the PDF form > Select field Properties > Select Appearance > Set Border Colour to any color > Set Fill Color to white and then try to print the form and check.