Hello, is there currently a delay of shipments From China to Russia? My packages has been stuck in transit status for three weeks now. Where is it? LZ012968012CN LZ036437005CN RV407400508CN

I have 2 shipments both stopped moving when they hit customs. They were ordered weeks apart, came from different companies, have different items packaged, and are in different airports. They are both awaiting USPS to take possession. One is over 40 days stuck. The other is several weeks stuck. These are the tracking numbers:
92612902410411000772251710
420335119214490360880220589507

Both packages shipped via USPS Priority international mail.
First package tracking number: CJ186631724US
Second package tracking number: CE453168030US
First package in transit well over a month, second one few weeks. Both tracking status have no updates since apr 25 for first package and may 14 for second package.
Any information reagrding their status will be much appreciated! Thank you.