Hello there!
The issue is related with external damage where in this case is specific to reflect damage which includes a rune (thorns) and gear having damage reflect by whatever percentage. I’m actually glad posting a topic also show’s other similar topics by keyword associations. This game breaking bug has already been mentioned before but only partially which will also link it down bellow:
So i decided to show its full extent in other words, how deeper it goes. WIth the recent patch one thing did got fixed which is the crucible where reflect dmg on any mob as the final kill blow now does give the traces (resources for the echoes) mobs no longer stay “frozen” in a perpetual animation anywhere, not just the crucible and most bounty quests also seem fixed if the final ticking dmg is reflect the quest completes (i only tried it on 4 diferent bountie quests and all worked)
Now to the “deeper” part which remains to be fixed. Any mob still dying to reflect damage as the killing trigger still drops no loot and that also included experience (i can’t test that sadly due to being max level). In order to test this easily i searched for enemies which had garanted loot drop in this case being the Echo Knight Cyvion and Warrick the Torn second location later in the game and by loot drop i mean “Plague Ichor” which always drops regarless of loot chances.
If u do not wish to watch the full fight i added timestamps to easily arrive at the present reflect kill trigger neither did i edit any video so u can see the genuine article. They are all unlisted youtube videos.
Echo Knight Cyvion fight 1 - https://youtu.be/xPgghxg6uec
Echo Knight Cyvion Fight 2 - https://youtu.be/aAh3yf6lTWY
Warrick The Torn + Random mobs - https://youtu.be/G9sRNqaf5qw
Unique Download Link | WeTransfer - wetransfer files like requested ( Dxdiag + player logs) - do take into account u have 7 days - in case it expires do let me know.
Once this last part gets fixed it should be the last remaining issues with reflect damage.
Kind Regards, Dev.