For stresstesting your CPU try Prime95, that should easily jack your CPU usage up to 100%. Run it for a while and if your PC shuts down again I'd suspect CPU overheat.

Use CoreTemp to keep track of your CPU temperature during this time. Different CPUs have different cut-offs but usually at about 70 Degrees most CPUs will shut down in order to preserve their lifespan.

I'm going to be leaving the office in a moment. But I'll ask the QA team to look into whether doing what you did causes the same issue. I'll also look into it personally tomorrow.

If you can provide exact details on what you do on the level as you progress that might be helpful, one of the issues is that it might be something very specific that you wouldn't consider unusual but not many other players do.

I tried a couple of unique ones that I could think of:

• Killing enemies only with spells
• Delaying enemies with Quick Freeze c onstantly
• Possession kills

I suspected it might be the case that you were suffering from it regardless of starting fresh or loading. Just wanted to confirm.

So I spent a few more hours on this today. Here are my findings:

Saving and Loading can cause Mightyquest to fall over on C5 for as yet undiscovered reasons. I created 3 saves at different points of the game which each had different effects on the Mightyquest progression when loaded.

1. Save 2 & 3 - Created post-crackpot introduction - Second wave spawns as normal but upon death the ritual does not progress despite the normal VO playing.

2. Save 1 - Created before first wave - All waves spawn as normal but results are as above, ritual does not progress, VO plays as normal.

3. Save 4 - Created immediately after level start - Upn capturing Rhaskos' core his Dungeon does not change ownership, however all other Mightyquest events progress as normal including the ritual.

I was not able to restart the level via the pause menu after the ritual progress was broken. Restarting the level from the campaign menu fixed the issue.

In addition, depending on certain positions of units in the world it can cause delays to the attack waves. E.g. One time after wave 2 spawned they met an oculus in the river at the centre, after killing the oculus the Templar continued on into the Dungeon but the sappers decided to go and mine out 2 random walls in the Empire Dungeon.

Interestingly after mining out that wall they returned to their normal path but on death did not trigger the VO or the ritual progression.

This suggests there is something else that cause this issue but I couldn't replicate that reliably.

Save files were reliable to replicate.

@Amirfoox - When you were suffering from this issue did you load any save games at all?

@QA Team This should be marked again as "Under Review"

For what it's worth I've just tried to replicate this 8 times, I'm not sure where the cause could be.

• Any unit with flying can pass a solid wall
• This can only occur if the unit with flying is positioned above a chasm
• I.E. the unit is attempting to push through the wall from the chasm side

Jan has confirmed this occurs on levels other than C13. Tested with Archon & Bafu (Both floating and flying affected)

See videos: