Kuva lich doesn't return stolen Endo from Diversion caches

[parabashka]

First of all, this bug appeared from first time Kuva liches made into game: 

 

Now it's almost a year after this bug still exist and nobody paying attention to this problem.

 

• TYPE: In-Game
• DESCRIPTION: If you play Lich mission, find cache with Endo inside, Lich steals it and doesn't return after vanquishing, leaving you without you hard-earned Endo.
• VISUAL: 
• REPRODUCTION: Find hidden cache during lich mission and wait for lich to steal it. After vanquishing lich doesn't return Endo.
• EXPECTED RESULT: Lich should return stolen Endo.
• OBSERVED RESULT: Lich stole a bunch of Endo during this year from me.
• REPRODUCTION RATE: Always.