I got two different situations, when auto progress stops while playing on Kong and when I get afk

PC System: Win 10 home, 16 GB RAM, Browser Firefox

1. The game gets stuck on a boss area. It doesn't count the bosskill and therefor doesn't mark the area as completed and doesn't move on. I've got to switch back to the area before and can activate the auto progress again
I got that for a long time, but it doesn't happen everytime... just sometimes


2. The game just stops progressing on a random area while I'm afk for some time and when I get back it just goes on without me having to do anything.
This is happening now for 2 or 3 days to me. I've had that feeling allready on Wednesday but I realy recognized it yesterday. I was away for 3 or more hours and when I got back the game was still progressing while it should have ran into a wall.

The same just now when I got up... I was at area 441 and without me leveling anyone up or something it went on to area 553 when it hit the wall.

Also in the 2nd case... the missions that should have been completed during the afk-time still show some time left. On that 15 minute mission to boost the DPS, there where still about 2 minutes left. Only when I started another mission, the server time updated and showed the mission as completed then.