Inquiry About Challenges in Transferring or Redeeming EPF and PPF Funds

What challenges do you face with the EPF (Employee Provident Fund) and PPF (Public Provident Fund) when it comes to transferring or redeeming money? If you have encountered any issues or errors, please let me know, as it would be very helpful for my dissertation. Thank you, and I look forward to hearing from you.

I haven’t faced any problem in redeem of EPF and PPF account ( holding this account for more than 13 years)
No issues in transferring EPF account from previous employer to current employer.