Based on my other shopee overseas purchases, all the status with ‘parcel is in-transit from China to Singapore’ dated 10 & 11 April 2021 were only cleared today and received by sorting center. <looking back my previous week purchases , in-transit clearance average 1-2 days>
No issues with my shopee overseas from Korea in-transit to Singapore (dated 9 April) and Malaysia (dated 8 April), which was received on Monday and Tuesday via Ninja/J&T
FYI, 1 of my small shopee order via singpost mail was received yesterday with the same 9 April 2021 13:19 in-transit from China to Singapore.
My analysis is the 9 April 2021 batch in-transit from China to Singapore 13:19 really have some issues.
And unfortunately, the our poco F3 in this 9 April batch still stuck with no updates as of today

damm suay