Dear all, While analysing the output of the Header/Payload Demux block in the OFDM receiver, I noticed an unexpected cyclic shift in the received data relative to the transmitted sequence. Specifically, the last 57 samples of the transmitted data appear at the beginning of the received output, and the first 7 samples are shifted to the end. This shift appears consistently across frames. We are currently using the Schmidl & Cox method for synchronization. I suspect the issue might be related to frame alignment or residual carrier offset correction, but I would appreciate any insights into whether this behaviour is expected from the demux block or if it suggests a deeper synchronization issue. Looking forward to your feedback. Best regards, Raviteja Allu.