BG96 eDRX & PTW not work as expected


We are testing eDRX on BG96 for EE(UK) Network. We set eDRX cycle equal to 327.68 sec and PTW is 10.24 sec for Cat NB1. To check Core network hold any incoming message we sent 1 PING packet towards UE. Ideally UE Can’t receive any paging message during eDRX cycle ( till 327.68.36 sec) but we observe paging message for MT_Access withing 70 sec (i.e during eDRX cycle ) . Why UE is coming out from eDRX mode to listen paging message?

Please upload your Log to help us analyze and locate the problem, thank you