The Chosen Ones

I've started from Give Up from the first chapter (using previous version) with about 150K gold. And found one global bug, that made some of the quests impossible to finish. It started from Ch.1:
1) Ogre Cave - at first about 4-5 people were still staying in nets even when ALL ogres were killed. I tried to rego to the cave after a while and with a huge delay the text "Thanks for saving" appeared. At all - for the first time and for some time after hostages were inactive. Only after other quest's cinematic played - it became possible to save hostages.
2) Worm hunting - same thing. Killed all worms and only after another quest fighting the text "all worms killed - return to Sir Richard" appeared - after about 15 minutes from actual worm killing.
3) Same with murloc quest - killed every murloc and after a huge delay and some fighting in other place the message "return for your reward" appeared.
4) Same with child saving. I killed creeps but cage was still inactive. Tried to recome to the cage location - nothing happened. Only after some actions in other locations and returning to the cage - the cinematic started.
5) Archmage sometimes casts no spell, but just stay in the middle of the location with invulnerability - as if he was casting something.
Chapter 2
1) For sure Fradz's counter attack ability should be activable/deactivable. It took about 20 minutes to finish Obelisk puzzle - as far as after ghosts spawning Fradz was sometimes teleporting to their backs and Obelisk color light canceled - so I have to start again and again until this passive ability failed to work for the whole time I needed to complete the puzzle. But with 25% of counter attack with 5 ghosts attacking you it was some kind of hard (mathematical probability saves the day).
2) Impossible to finish Sand King quest - he appeared after 25 kills but after some damage went to the sand (as it was in versions before) and returns with so huge delay that he was able to regenerate completely. Again, he returns only after some cinematics/actions in other locations.
3) Killed all hydras and again - nothing happened, again only after some actions in other location Archeon quest triggered and gave the reward.
4) Big Owlbear didn't appear after killing of every little OwlBears. Dunno if he was removed or not.
5) Sometimes some abilities effects disappeared. I played on the same options as in previous versions, but for this time during the fight against Noctorian his lighting waves spell was invisible - and I spend about 6-7 lives because was unable to saw the effect and move in correct direction from it. Dunno if it was connected with skipping of some cinematic or not. Discharge spell sometimes was invisible - but after a while became visible again.
6) I finished my walkthrough in the Morphers corridor. Killed all the mummies but the teleports didn't disappear. Again delay in some triggered actions in the game. I was waiting for about 20 minutes - nothing happened - unable to leave this location or to move forward.

In my opinion it is some kind of global bug - delay of triggered actions after some quests were actually finished. I played after give up using, just downloaded new version and deleted previous one, and started the game from Ch.8 (as far as in previous version I've stooped on Ch., sold my artifacts and used give up. I was sometimes skipping the cinematic, and my graphics and effects quality was similar to previous version - when everything connected with current bug were working correctly.
If some further information needed - no problem to answer or test something.
But the campaign is unplayable for me