Lootr compat seems to not be functioning properly in structures with replaced chests

Fresh instance on Forge - 47.3.29 with:

• Jade-1.20.1-Forge-11.12.3
• JadeAddons-1.20.1-Forge-5.3.1
• jei-1.20.1-forge-15.12.2.51
• lootr-forge-1.20-0.7.35.90
• Quark-4.0-460
• Zeta-1.0-24

Ancient City is working but it doesn't provide the Ashen Chest variant

This one is on my end, as I've a mixin that replaces the Elytra item frame with a Lootr chest that always provides an Elytra.

Yeah, I should've disabled it in the config when taking the screenshot but the issue is the quark lootr variant chests don't replace their standard counterpart. As a temporary fix, I disabled the quark chests in the config to not spawn in structures so it spawns lootr ones instead.