Yeah, that's all. The chests that are generated by quark don't get changed for lootr chests.

[building.variant_chests]
	"Replace Worldgen Chests" = false 

this will fix that, but you loss quark gen'ed chests

Lootr is incompatible bc Quark changes the PushReaction of their chests, which makes it incompatible with Lootr.

Hello! Quark's moved to 1.18 now-- unfortunately, this means that (unless your bug is critical and/or game-breaking), we're closing support for issues filed for versions prior to it (e.g. Quark on 1.16).

If your issue still occurs on 1.18, or if your issue happens to be rather critical (e.g. consistently crashing the game with no other mods present), please leave another note or open a new issue. Thanks for your cooperation!