Jeanne d'Arc

[LunaMoo]

Probably same as this, it's possible Vulkan backend has some general memory leak, potentially only on some devices or only in games using certain effects, it might as well be gpu driver bug. If you have github account, would be nice if you join the discussion I linked above providing details about your device and the game.
There's probably nothing you can do to actually fix it yourself, unless it happens because of some setting or feature that can be disabled in which case it would be nice to hear about it.