I get this while playing my character.
Its a Sorcerer focus channeling based character that “exploits” cast when hit / on hit skills.
Im using Arcane Ascendancy with Focus.
I got an Idol that gives me a 9% chance to cast Nova when hit.
I have specced the nova as a channeling skill, when Focus is channeling and the 9% chance is proceed my character are able to channel the nova skill by just channeling Focus.
On Arcane Ascendancy I have done a similar setup with Lightning Blast, it’s specced as a channeling skill and the same thing happens when you channel Focus.
So my character can cast nova and lightningblast for “free” while having Arace Ascendancy activated.
It looks like this overload the game in some matter as my game crashes regularly.
Even when attacking a training dummy. (Only the lightning blast activates on the dummy )
This is how it looks on a training dummy:
I get this error: Fatal Error in GC - Unexpected Mark Stack Overflow
Did some digging and it seems like its a Unity error.
https://forum.unity.com/threads/fatal-error-in-gc-unexpected-mark-stack-overflow.754952/