This is happening to a lot of people, something to note though...
First off I live and play from England (PS4) and reside in Aether - Siren server. After the patch I was fine for about an hour until I started the Omega questline, after starting it I started having this issue. Now, playing on an alt or making a new char on any NA server was fine, not a single issue and playing as normal. So I asked a friend (residing in Australia) who was playing on their alt to go on their main and start the Omega questline, soon after starting it she also starting getting loss of actions and being disconnected.
Can't say what this issue is, but there's something here for sure.