Field data on a PDF fillable form is not showing up.

Hello all,

Fillable PDF forms linked to work are sent to a worker of mine via email. When viewing a file preview in Outlook Desktop, the form is presented and the field data is present in the appropriate fields. When you open the PDF with Reader or Acrobat Pro, the fields on the forms are empty. Fields can be highlighted for testing by clicking on them, and nothing is shown when a space is added to or deleted from a field. When the file is opened in MS Edge, all of the form field data is then accessible. Another one of my employees was able to open the identical form and examine the field data using their Acrobat XI.

It's urgent please help.