Checking to see if anyone faced this situation. Below are my filing dates
1/21/2020 - Filed in regular processing
2/10/2020- Upgraded to PP
2/19/2020 - received RFE
4/09/2020- Responded to RFE
Today is 18th day and there is no update on the case status on the uscis website. The latest status shown is 4/09/2020 RFE Response received.