Lots of bugs!

I really like this game and I even  bought the deluxe edition. I have been playing EA/Bioware games for a long time but it is extremely disappointing to encounter so many bugs. First of all, the decor of the light house's main room (Where all characters gather) is not showing up. I've tried reloading alternative saves, loading previous saves, started a new game and restarted PC but no changes. When the decor shows up in one attempt after restarting, i encounter another bug where I cannot interact with Fen'harel alters, Evanuris alters and Timelost hoards chests/unique chests anymore for some reason. After another attempt by restarting the game again, they all work again but after some point in the game, I cannot interact with the timelost gateways, thus cannot proceed with certain sidequests or collecting some collectables. 

Another annoying bug is when fighting the dragon called the formless one. I'm not using any mods or trainers or cheats and yet that stupid dragon sits on the wall after some damage was done and never comes down anymore. I tried reloading previous saves but did not help.  So i had to start a new game again and this time it finally works but after defeating that dragon, I cannot interact with the unique chest in that dragon's arena or any other unique chests anymore. 

I'm really tired of these bugs and countless restarts as I cannot even enjoy the game properly anymore. Please fix these bugs and pls don't make me regret supporting EA/Bioware games.