Missing cancels while listening WS for pushCancel and pushCancels

[McAronDev]

I'm using v2 WS API for orderbook syncing. I've stored each cancel from pushCancel and pushCancels messages using their ID as key in DB. But as i see, sometimes cancel is missed. For example, after cancel { "id": 38795396, ... } next is { "id": 38795398, ... } , but 38795397 is missed. I have tried to listen WS api parallel on 2 different machines, and both of them has same missed cancels.