Hi, just thought I'd let you know there is a bug with minecart chests that makes the minecart invisible if they are generated naturally like in structures. I've tested for the last 4 hours and I'm positive it's caused by Lootr. Using the most recent version on minecraft 1.20.1, have a nice day :)

Which structures are you referring to? Could you include the log as well? What versions of Lootr, and which mod loader are you using?

lootr-fabric-1.20-0.7.35.85, 1.20.1 fabric, and tested with Yung's Better Mineshafts and Hopo Better Mineshaft

latest.log

So, as far as I can tell from the "Hopo Better Mineshaft", although I haven't looked through all of the structures as it's painful to go through each binary file one-by-one, "Hopo Better Mineshaft" doesn't have any chest minecarts, just normal minecarts.

Looking through the source for YUNG's, they should be generating chest minecarts the exact same way that Vanilla does, meaning that Lootr should convert them as normal.

As I haven't had any reports of issues with YUNG's (which has a considerable number of downloads), I'm going to guess that it might be some sort of conflict between YUNG's and Hopo.

If you get a chance to disable the Hopo datapack/mod in a new world and locate a mineshaft, you might be able to confirm this.