Recently there has been a surge in OPT denials because of some of the reasons below:

1. OPT filed not meeting the 30 day rule 2. OPT denied because of CPT 3. OPT denied because of transfer of  SEVIS 4. OPT denied because DSO did not properly update SEVIS. 5. OPT denied because form I-765 not properly filed. The video below covers the issue